Modeling instruction: Positive attitudinal shifts in introductory physics measured with CLASS
Phys. Rev. ST Phys. Educ. Res. 5, 013102 (2009)
Eric Brewe, Laird Kramer, George O’Brien
Among the most surprising findings in Physics Education Research is the lack of positive results on attitudinal measures, such as Colorado Learning Attitudes about Science Survey (CLASS) and Maryland Physics Expectations Survey (MPEX). The uniformity with which physics teaching manages to negatively shift attitudes toward physics learning is striking. Strategies which have been shown to improve conceptual learning, such as interactive engagement and studio-format classes, provide more authentic science experiences for students; yet do not seem to be sufficient to produce positive attitudinal results. Florida International University’s Physics Education Research Group has implemented Modeling Instruction in University Physics classes as part of an overall effort toward building a research and learning community. Modeling Instruction is explicitly designed to engage students in scientific practices that include model building, validation, and revision. Results from a preinstruction/postinstruction CLASS measurement show attitudinal improvements through both semesters of an introductory physics sequence, as well as over the entire two-course sequence. In this Brief Report, we report positive shifts from the CLASS in one section of a modeling-based introductory physics sequence, for both mechanics (N=22) and electricity and magnetism (N=23) . Using the CLASS results and follow up interviews, we examine how these results reflect on modeling instruction and the unique student community and population at FIU.
Showing posts with label attitudes. Show all posts
Showing posts with label attitudes. Show all posts
2009-06-19
2009-05-17
Kim Song - IJSE 2009
The Effects of Dichotomous Attitudes toward Science on Interest and Conceptual Understanding in Physics
International Journal of Science Education online first publication
Minkee Kim; Jinwoong Song
The literature on students' attitudinal constructs in science education asserts that students hold dichotomous attitudes toward science (AS). For instance, studies from the Relevance of Science Education project reveal that students possess negative attitudes in terms of their favourableness toward school science, preference toward scientific careers, and emotional states toward science (negative intrinsic AS), despite their positive perception that science is important for society (positive extrinsic AS). The issue demands in-depth examination, since not enough science educators have studied the effects of the dichotomous AS on science education. Rather, they have attempted to improve the uncategorised AS for stimulating student achievement in science education. Hence, the aim of this study is to clarify how the dichotomous attitude (intrinsic AS and extrinsic AS) relates to the two educational products in science: interest inventory and conceptual understanding. One hundred and sixteen physics learners in Japan were sampled for fitting the structural equation model in this study. Our final model validated by LISREL suggests that intrinsic AS exclusively stimulate students' interest and conceptual understanding in physics, while extrinsic AS fail to play their expected role. Finally, features of the sampled 10th-graders and their dichotomous AS are further interpreted with the prevalent concept of the hidden curriculum.
International Journal of Science Education online first publication
Minkee Kim; Jinwoong Song
The literature on students' attitudinal constructs in science education asserts that students hold dichotomous attitudes toward science (AS). For instance, studies from the Relevance of Science Education project reveal that students possess negative attitudes in terms of their favourableness toward school science, preference toward scientific careers, and emotional states toward science (negative intrinsic AS), despite their positive perception that science is important for society (positive extrinsic AS). The issue demands in-depth examination, since not enough science educators have studied the effects of the dichotomous AS on science education. Rather, they have attempted to improve the uncategorised AS for stimulating student achievement in science education. Hence, the aim of this study is to clarify how the dichotomous attitude (intrinsic AS and extrinsic AS) relates to the two educational products in science: interest inventory and conceptual understanding. One hundred and sixteen physics learners in Japan were sampled for fitting the structural equation model in this study. Our final model validated by LISREL suggests that intrinsic AS exclusively stimulate students' interest and conceptual understanding in physics, while extrinsic AS fail to play their expected role. Finally, features of the sampled 10th-graders and their dichotomous AS are further interpreted with the prevalent concept of the hidden curriculum.
2009-04-19
Liu Hu Jiannong Adey - IJSE 2009
Gender Stereotyping and Affective Attitudes Towards Science in Chinese Secondary School Students
International Journal of Science Education
Mingxin Liu; Weiping Hu; Shi Jiannong; Philip Adey
This study explores explicit and implicit gender-science stereotypes and affective attitudes towards science in a sample of Chinese secondary school students. The results showed that (1) gender-science stereotyping was more and more apparent as the specialization of science subjects progresses through secondary school, becoming stronger from the 10th grade; girls were more inclined to stereotype than boys while this gender difference decreased with increasing grade; (2) girls tend to have an implicit science-unpleasant/humanities-pleasant association from the 8th grade, while boys showed a negative implicit attitude towards science up to the 11th grade. In self-report, girls preferred humanities to science, while boys preferred science to humanities; (3) implicit affective attitude was closely related to implicit stereotype. In particular, implicit affective attitude has a stronger predictive power on stereotype than the other way around, the result of which may have more significance for girls.
International Journal of Science Education
Mingxin Liu; Weiping Hu; Shi Jiannong; Philip Adey
This study explores explicit and implicit gender-science stereotypes and affective attitudes towards science in a sample of Chinese secondary school students. The results showed that (1) gender-science stereotyping was more and more apparent as the specialization of science subjects progresses through secondary school, becoming stronger from the 10th grade; girls were more inclined to stereotype than boys while this gender difference decreased with increasing grade; (2) girls tend to have an implicit science-unpleasant/humanities-pleasant association from the 8th grade, while boys showed a negative implicit attitude towards science up to the 11th grade. In self-report, girls preferred humanities to science, while boys preferred science to humanities; (3) implicit affective attitude was closely related to implicit stereotype. In particular, implicit affective attitude has a stronger predictive power on stereotype than the other way around, the result of which may have more significance for girls.
2009-02-22
Wittman - arxiv.org 2009
Shaping Attitudes Toward Science in an Introductory Astronomy Class
arXiv:0902.3321
D. Wittman (UC Davis)
At many universities, astronomy is a popular way for non-science majors to fulfill a general education requirement. Because general-education astronomy may be the only college-level science course taken by these students, it is the last chance to shape the science attitudes of these future journalists, teachers, politicians, and voters. I report on an attempt to measure and induce changes in science attitudes in my general-education astronomy course. I describe construction of the attitude survey, classroom activities designed to influence attitudes, and give numerical results indicating a significant improvement. In contrast, the literature on attitudes in introductory physics courses generally reports stagnation or decline. I briefly comment on some plausible explanations for this difference.
arXiv:0902.3321
D. Wittman (UC Davis)
At many universities, astronomy is a popular way for non-science majors to fulfill a general education requirement. Because general-education astronomy may be the only college-level science course taken by these students, it is the last chance to shape the science attitudes of these future journalists, teachers, politicians, and voters. I report on an attempt to measure and induce changes in science attitudes in my general-education astronomy course. I describe construction of the attitude survey, classroom activities designed to influence attitudes, and give numerical results indicating a significant improvement. In contrast, the literature on attitudes in introductory physics courses generally reports stagnation or decline. I briefly comment on some plausible explanations for this difference.
2009-01-15
Ogan-Bekiroglu - IJSE
Assessing Assessment: Examination of pre-service physics teachers' attitudes towards assessment and factors affecting their attitudes
International Journal of Science Education, Volume 31 Issue 1 2009
Feral Ogan-Bekiroglu
The purpose of this study was to determine pre-service physics teachers' attitudes towards assessment. It was also aimed to examine the factors affecting their attitudes. Two factors were considered. The first was difficulties that pre-service teachers experienced relating to assessment. The second factor was teachers' self-efficacy regarding their ability to assess. The difficulties were divided into external and internal. Internal difficulties depended on pre-service teachers' assessment skills and their subject matter knowledge, and represented the difficulties that they encountered during preparation and evaluation of assessment methods. External difficulties, on the other hand, depended on the external factors such as school policy and facilities that might affect pre-service teachers' classroom assessment implementation. A parallel mixed-methodology approach was utilized during the data collection and analysis. This paradigm combined both qualitative and quantitative methods to give both breadth and scope to the research. The pre-service physics teachers' general attitude towards assessment was determined as close to constructivist. Knowledge about the subject assessed and university entrance examination were found to be the common factors that affected pre-service teachers' predispositions for action. Conclusions carry implications for science teacher education in Turkey and other countries where educational reforms have been implemented.
International Journal of Science Education, Volume 31 Issue 1 2009
Feral Ogan-Bekiroglu
The purpose of this study was to determine pre-service physics teachers' attitudes towards assessment. It was also aimed to examine the factors affecting their attitudes. Two factors were considered. The first was difficulties that pre-service teachers experienced relating to assessment. The second factor was teachers' self-efficacy regarding their ability to assess. The difficulties were divided into external and internal. Internal difficulties depended on pre-service teachers' assessment skills and their subject matter knowledge, and represented the difficulties that they encountered during preparation and evaluation of assessment methods. External difficulties, on the other hand, depended on the external factors such as school policy and facilities that might affect pre-service teachers' classroom assessment implementation. A parallel mixed-methodology approach was utilized during the data collection and analysis. This paradigm combined both qualitative and quantitative methods to give both breadth and scope to the research. The pre-service physics teachers' general attitude towards assessment was determined as close to constructivist. Knowledge about the subject assessed and university entrance examination were found to be the common factors that affected pre-service teachers' predispositions for action. Conclusions carry implications for science teacher education in Turkey and other countries where educational reforms have been implemented.
2008-11-17
Hanif Sneddon Al-Ahmadi Reid - EJP 2009
The perceptions, views and opinions of university students about physics learning during undergraduate laboratory work
Eur. J. Phys. 30 85-96 (2009)
M Hanif, P H Sneddon, F M Al-Ahmadi and N Reid
The physics laboratory has long been a distinctive feature of physics education. It has been given a central role in the teaching and learning of physics at school and undergraduate levels in universities. The literature indicates that science educators have suggested that there are academically rich benefits in the learning and understanding of physics based on laboratory work. However, some educators have begun to raise serious and valid questions about the effectiveness of the learning through laboratory work in science subjects and the heavy cost for the establishment and maintenance of laboratories. This research paper provides perspectives on these issues through a brief review of the history, goals and objectives related to the physics undergraduate laboratory. An empirical research study was conducted to determine the university students' perceptions, views and opinions with regard to physics learning during undergraduate laboratory work. This involved 143 students from first and higher years and the evidence was gathered by survey and focus group interviews, the former using a variety of types of questions. The evidence from the students is positive and suggests that undergraduate physics laboratory work may well be contributing towards the achievement of specific desirable goals.
Eur. J. Phys. 30 85-96 (2009)
M Hanif, P H Sneddon, F M Al-Ahmadi and N Reid
The physics laboratory has long been a distinctive feature of physics education. It has been given a central role in the teaching and learning of physics at school and undergraduate levels in universities. The literature indicates that science educators have suggested that there are academically rich benefits in the learning and understanding of physics based on laboratory work. However, some educators have begun to raise serious and valid questions about the effectiveness of the learning through laboratory work in science subjects and the heavy cost for the establishment and maintenance of laboratories. This research paper provides perspectives on these issues through a brief review of the history, goals and objectives related to the physics undergraduate laboratory. An empirical research study was conducted to determine the university students' perceptions, views and opinions with regard to physics learning during undergraduate laboratory work. This involved 143 students from first and higher years and the evidence was gathered by survey and focus group interviews, the former using a variety of types of questions. The evidence from the students is positive and suggests that undergraduate physics laboratory work may well be contributing towards the achievement of specific desirable goals.
2008-11-16
Gray Adams Wieman Perkins - PRST-PER 2008
Students know what physicists believe, but they don’t agree: A study using the CLASS survey
Phys. Rev. ST Phys. Educ. Res. 4, 020106 (2008)
Kara E. Gray, Wendy K. Adams, Carl E. Wieman, and Katherine K. Perkins
We measured what students perceive physicists to believe about physics and solving physics problems and how those perceptions differ from the students’ personal beliefs. In this study, we used a modified version of the Colorado Learning Attitudes about Science Survey which asked students to respond to each statement with both their personal belief and the response they thought a physicist would give. Students from three different types of university introductory physics courses were studied. Students who have not yet taken physics in college have a surprisingly accurate idea of what physicists believe about physics no matter what their high school background and what physics courses they choose to take in college. These ideas are largely unaffected by their college physics instruction. In contrast, students’ personal beliefs about physics differ with varying high school physics backgrounds and college physics courses in which they enroll, and these beliefs are affected by college physics instruction. Women have a larger difference between their reported personal beliefs and their perceptions of physicists’ beliefs than do men.
Phys. Rev. ST Phys. Educ. Res. 4, 020106 (2008)
Kara E. Gray, Wendy K. Adams, Carl E. Wieman, and Katherine K. Perkins
We measured what students perceive physicists to believe about physics and solving physics problems and how those perceptions differ from the students’ personal beliefs. In this study, we used a modified version of the Colorado Learning Attitudes about Science Survey which asked students to respond to each statement with both their personal belief and the response they thought a physicist would give. Students from three different types of university introductory physics courses were studied. Students who have not yet taken physics in college have a surprisingly accurate idea of what physicists believe about physics no matter what their high school background and what physics courses they choose to take in college. These ideas are largely unaffected by their college physics instruction. In contrast, students’ personal beliefs about physics differ with varying high school physics backgrounds and college physics courses in which they enroll, and these beliefs are affected by college physics instruction. Women have a larger difference between their reported personal beliefs and their perceptions of physicists’ beliefs than do men.
2008-10-18
Otero Gray - Phys Rev 2008
Attitudinal gains across multiple universities using the Physics and Everyday Thinking curriculum
Phys. Rev. ST Phys. Educ. Res. 4, 020104 (2008) [7 pages]
Valerie K. Otero and Kara E. Gray
Instructional techniques based on research in cognitive science and physics education have been used in physics courses to enhance student learning. While dramatic increases in conceptual understanding have been observed, students enrolled in these courses tend to move away from scientistlike views of the discipline and toward novicelike views, as measured by various assessment instruments. It has been proposed that course materials and instruction that explicitly address epistemology, the nature of science, and the nature of learning science will help students develop views more closely aligned with the views of scientists. The Physics and Everyday Thinking (PET) curriculum has specific goals for helping nonscience majors explicitly reflect on the nature of science and the nature of learning science. We show that in PET courses with small and large enrollments, shifts toward expert responses ranged from +4% to +16.5% on the Colorado Learning Attitudes about Science Survey. These results are compared to results from other studies using a variety of similar assessment instruments.
Phys. Rev. ST Phys. Educ. Res. 4, 020104 (2008) [7 pages]
Valerie K. Otero and Kara E. Gray
Instructional techniques based on research in cognitive science and physics education have been used in physics courses to enhance student learning. While dramatic increases in conceptual understanding have been observed, students enrolled in these courses tend to move away from scientistlike views of the discipline and toward novicelike views, as measured by various assessment instruments. It has been proposed that course materials and instruction that explicitly address epistemology, the nature of science, and the nature of learning science will help students develop views more closely aligned with the views of scientists. The Physics and Everyday Thinking (PET) curriculum has specific goals for helping nonscience majors explicitly reflect on the nature of science and the nature of learning science. We show that in PET courses with small and large enrollments, shifts toward expert responses ranged from +4% to +16.5% on the Colorado Learning Attitudes about Science Survey. These results are compared to results from other studies using a variety of similar assessment instruments.
2008-09-10
Ogilvie - arxiv.org 2008
Impact of Context-Rich, Multifaceted Problems on Students' Attitudes Towards Problem-Solving
arxiv.org
C.A. Ogilvie
Most students struggle when faced with complex and ill-structured tasks because the strategies taught in schools and universities simply require finding and applying the correct formulae or strategy to answer well-structured, algorithmic problems. For students to develop their ability to solve ill-structured problems, they must first believe that standardized procedural approaches will not always be sufficient for solving ill-structured engineering and scientific challenges. In this paper we document the range of beliefs university students have about problem-solving. Students enrolled in a physics course submitted a written reflection both at the start and the end of the course on how they solve problems. We coded approximately 500 of these reflections for the presence of different problem-solving approaches. At the start of the semester over 50% of the students mention in written reflections that they use Rolodex equation matching, i.e. they solve problems by searching for equations that have the same variables as the knowns and unknowns. We then describe the extent to which students' beliefs about physics problem-solving change due to their experience throughout a semester with context-rich, multifaceted problems. The frequency of strategies such as the Rolodex method reduces only slightly by the end of the semester. However, there is an increase in students describing more expansive strategies within their reflections. In particular there is a large increase in describing the use of diagrams, and thinking about concepts first. Hence the use of context-rich, multi-faceted problems positively impacts students' attitude towards problem-solving.
arxiv.org
C.A. Ogilvie
Most students struggle when faced with complex and ill-structured tasks because the strategies taught in schools and universities simply require finding and applying the correct formulae or strategy to answer well-structured, algorithmic problems. For students to develop their ability to solve ill-structured problems, they must first believe that standardized procedural approaches will not always be sufficient for solving ill-structured engineering and scientific challenges. In this paper we document the range of beliefs university students have about problem-solving. Students enrolled in a physics course submitted a written reflection both at the start and the end of the course on how they solve problems. We coded approximately 500 of these reflections for the presence of different problem-solving approaches. At the start of the semester over 50% of the students mention in written reflections that they use Rolodex equation matching, i.e. they solve problems by searching for equations that have the same variables as the knowns and unknowns. We then describe the extent to which students' beliefs about physics problem-solving change due to their experience throughout a semester with context-rich, multifaceted problems. The frequency of strategies such as the Rolodex method reduces only slightly by the end of the semester. However, there is an increase in students describing more expansive strategies within their reflections. In particular there is a large increase in describing the use of diagrams, and thinking about concepts first. Hence the use of context-rich, multi-faceted problems positively impacts students' attitude towards problem-solving.
2008-07-29
Maggioni Parkinson - Ed Psych Review 2008
The Role of Teacher Epistemic Cognition, Epistemic Beliefs, and Calibration in Instruction
Ed Psych Review online first
Liliana Maggioni, Meghan M. Parkinson
This review examines the literature on teacher epistemic cognition, epistemic beliefs, and calibration to consider the relation between these constructs and instruction that emerged from empirical studies. In considering how this body of literature can enhance understanding of how students become masters of their learning processes, we will briefly review how different theoretical frameworks have conceptualized the relation between epistemic cognition, epistemic beliefs, calibration and metacognition, self-regulation, and self-regulated learning. Implications for research include a more nuanced conceptualization of epistemic beliefs and a theoretical integration of these constructs. Implications for practice regard the reciprocal relations between teachers’ knowledge, experience, epistemic cognition, epistemic beliefs, and calibration and their effects on pedagogical practices. The role of teachers’ education and professional development is discussed.
Ed Psych Review online first
Liliana Maggioni, Meghan M. Parkinson
This review examines the literature on teacher epistemic cognition, epistemic beliefs, and calibration to consider the relation between these constructs and instruction that emerged from empirical studies. In considering how this body of literature can enhance understanding of how students become masters of their learning processes, we will briefly review how different theoretical frameworks have conceptualized the relation between epistemic cognition, epistemic beliefs, calibration and metacognition, self-regulation, and self-regulated learning. Implications for research include a more nuanced conceptualization of epistemic beliefs and a theoretical integration of these constructs. Implications for practice regard the reciprocal relations between teachers’ knowledge, experience, epistemic cognition, epistemic beliefs, and calibration and their effects on pedagogical practices. The role of teachers’ education and professional development is discussed.
Blalock Lichtenstein Owen Pruski Marshall Toepperwein - IJSE 2008
In Pursuit of Validity: A comprehensive review of science attitude instruments 1935-2005
International Journal of Science Education, Volume 30, Issue 7 June 2008 , pages 961 - 977
Cheryl L. Blalock; Michael J. Lichtenstein; Steven Owen; Linda Pruski; Carolyn Marshall; MaryAnne Toepperwein
The purpose of this review is to present a comprehensive evaluation of science attitude instruments based on published psychometric evidence. A multitude of instruments have been used through the years and some have been linked to career choice and school performance. Substantiating such associations is of paramount importance if researchers wish to influence educational policy. However, associations are reduced, or hard to discover, if instruments have weak psychometric properties. Several databases were searched for peer-reviewed articles that discussed the development and use of science attitude instruments. Instruments were grouped into the following categories: attitudes toward science, scientific attitudes, nature of science, scientific career interests, and other. A data abstraction and scoring rubric was used to summarize and evaluate 150 published articles that spanned 66 instruments. Most instruments had single study usage and showed an absence of psychometric evidence. This review demonstrated that there are few instruments available with the necessary psychometric data to merit recommendation. The review quantifies the current state of the research regarding the measurement of science attitude in students; the results should elicit further discussion and encourage more rigorous analyses of instruments. The findings may assist other researchers to select an instrument and alert them to its strengths and weaknesses. This review points the way forward for research in this field. Instruments already in existence should be used in repeat studies, and reliability and validity evidence should be collected and shared.
International Journal of Science Education, Volume 30, Issue 7 June 2008 , pages 961 - 977
Cheryl L. Blalock; Michael J. Lichtenstein; Steven Owen; Linda Pruski; Carolyn Marshall; MaryAnne Toepperwein
The purpose of this review is to present a comprehensive evaluation of science attitude instruments based on published psychometric evidence. A multitude of instruments have been used through the years and some have been linked to career choice and school performance. Substantiating such associations is of paramount importance if researchers wish to influence educational policy. However, associations are reduced, or hard to discover, if instruments have weak psychometric properties. Several databases were searched for peer-reviewed articles that discussed the development and use of science attitude instruments. Instruments were grouped into the following categories: attitudes toward science, scientific attitudes, nature of science, scientific career interests, and other. A data abstraction and scoring rubric was used to summarize and evaluate 150 published articles that spanned 66 instruments. Most instruments had single study usage and showed an absence of psychometric evidence. This review demonstrated that there are few instruments available with the necessary psychometric data to merit recommendation. The review quantifies the current state of the research regarding the measurement of science attitude in students; the results should elicit further discussion and encourage more rigorous analyses of instruments. The findings may assist other researchers to select an instrument and alert them to its strengths and weaknesses. This review points the way forward for research in this field. Instruments already in existence should be used in repeat studies, and reliability and validity evidence should be collected and shared.
2008-07-01
Duda Garrett - arxiv.org 2007/8
Blogging in the physics classroom: A research-based approach to shaping students' attitudes towards physics
arxiv.org
Gintaras Duda, Katherine Garrett
Even though there has been a tremendous amount of research done in how to help students learn physics, students are still coming away missing a crucial piece of the puzzle: why bother with physics? Students learn fundamental laws and how to calculate, but come out of a general physics course without a deep understanding of how physics has transformed the world around them. In other words, they get the "how" but not the "why". Studies have shown that students leave introductory physics courses almost universally with decreased expectations and with a more negative attitude. This paper will detail an experiment to address this problem: a course weblog or "blog" which discusses real-world applications of physics and engages students in discussion and thinking outside of class. Specifically, students' attitudes towards the value of physics and its applicability to the real-world were probed using a 26-question Likert scale survey over the course of four semesters in an introductory physics course at a comprehensive Jesuit university. We found that students who did not participate in the blog study generally exhibited a deterioration in attitude towards physics as seen previously. However, students who read, commented, and were involved with the blog maintained their initially positive attitudes towards physics. Student response to the blog was overwhelmingly positive, with students claiming that the blog made the things we studied in the classroom come alive for them and seem much more relevant.
arxiv.org
Gintaras Duda, Katherine Garrett
Even though there has been a tremendous amount of research done in how to help students learn physics, students are still coming away missing a crucial piece of the puzzle: why bother with physics? Students learn fundamental laws and how to calculate, but come out of a general physics course without a deep understanding of how physics has transformed the world around them. In other words, they get the "how" but not the "why". Studies have shown that students leave introductory physics courses almost universally with decreased expectations and with a more negative attitude. This paper will detail an experiment to address this problem: a course weblog or "blog" which discusses real-world applications of physics and engages students in discussion and thinking outside of class. Specifically, students' attitudes towards the value of physics and its applicability to the real-world were probed using a 26-question Likert scale survey over the course of four semesters in an introductory physics course at a comprehensive Jesuit university. We found that students who did not participate in the blog study generally exhibited a deterioration in attitude towards physics as seen previously. However, students who read, commented, and were involved with the blog maintained their initially positive attitudes towards physics. Student response to the blog was overwhelmingly positive, with students claiming that the blog made the things we studied in the classroom come alive for them and seem much more relevant.
2008-05-13
Lichtenstein Owen Blalock Liu Ramirez Pruski Marshall Toepperwein - JRST 2008
Psychometric reevaluation of the scientific attitude inventory-revised (SAI-II)
J Res Sci Teach 45: 600-616, 2008
Michael J. Lichtenstein, Steven V. Owen, Cheryl L. Blalock, Yan Liu, Kacy A. Ramirez, Linda A. Pruski, Carolyn E. Marshall, Mary Anne Toepperwein
The central purposes of this study were to review the development and evolution of the Scientific Attitude Inventory (SAI) and then reevaluate the psychometric properties of the revised form of the SAI, the Scientific Attitude Inventory II (SAI-II). The SAI-II was administered to a convenience sample of 543 middle and high school students from five teachers in four schools in four school districts in San Antonio, Texas, at the beginning of the 2004-2005 school year. Confirmatory factor analysis on the full data set failed to support the existence of a 12-factor structure (as proposed by the scale developers) or a one-factor structure. The data were then randomly divided into exploratory [exploratory factor analysis (EFA)] validation and confirmatory [confirmatory factor analysis (CFA)] cross-validation sets. Exploratory and confirmatory models yielded a three-factor solution that did not fit the data well [2 (321) = 646, p < .001; RMSEA = .061 (.90 CI = .054-.068); and CFI = .81]. The three factors were labeled Science is About Understanding and Explaining (13 items), Science is Rigid (6 items), and I Want to Be a Scientist (8 items). The -coefficients for these three factors ranged from 0.59 to 0.85. Whether these identified subscales are valid will require independent investigation. In this sample, and consistent with prior publications, the SAI-II in its current form did not have satisfactory psychometric properties and cannot be recommended for further use. © 2008 Wiley Periodicals, Inc.
J Res Sci Teach 45: 600-616, 2008
Michael J. Lichtenstein, Steven V. Owen, Cheryl L. Blalock, Yan Liu, Kacy A. Ramirez, Linda A. Pruski, Carolyn E. Marshall, Mary Anne Toepperwein
The central purposes of this study were to review the development and evolution of the Scientific Attitude Inventory (SAI) and then reevaluate the psychometric properties of the revised form of the SAI, the Scientific Attitude Inventory II (SAI-II). The SAI-II was administered to a convenience sample of 543 middle and high school students from five teachers in four schools in four school districts in San Antonio, Texas, at the beginning of the 2004-2005 school year. Confirmatory factor analysis on the full data set failed to support the existence of a 12-factor structure (as proposed by the scale developers) or a one-factor structure. The data were then randomly divided into exploratory [exploratory factor analysis (EFA)] validation and confirmatory [confirmatory factor analysis (CFA)] cross-validation sets. Exploratory and confirmatory models yielded a three-factor solution that did not fit the data well [2 (321) = 646, p < .001; RMSEA = .061 (.90 CI = .054-.068); and CFI = .81]. The three factors were labeled Science is About Understanding and Explaining (13 items), Science is Rigid (6 items), and I Want to Be a Scientist (8 items). The -coefficients for these three factors ranged from 0.59 to 0.85. Whether these identified subscales are valid will require independent investigation. In this sample, and consistent with prior publications, the SAI-II in its current form did not have satisfactory psychometric properties and cannot be recommended for further use. © 2008 Wiley Periodicals, Inc.
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