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Research in Science and Technological Education
written by Derya Kaltakci, Ali Eryilmaz, and Lillian C. McDermott
Validity of the FTGOT scores was established by means of some qualitative and quantitative methods. These are: (1) content and face validations by six experts; (2) Positive correlations between the PSPTs' correct scores considering only first tiers of the FTGOT and their confidence score for this tier (r =  .194) and between correct scores considering first and third tiers and confidence scores for both of those tiers (r =  .218) were found as evidences for construct validity. (3) False positive (3.5%), false negative (3.3%) and lack of knowledge (5.1%) percentages were found to be less than 10% as an evidence for content validity of the test scores. (4) Explanatory factor analysis conducted over correct and misconception scores yielded meaningful factors for the correct scores as an evidence for construct validity. Additionally, the Cronbach alpha coefficients were calculated for correct scores (r = 0.59) and misconception scores (r = 0.42) to establish the reliability of the test scores. Six misconceptions about geometrical optics, which were held by more than 10% of the PSPTs, were identified and considered to be significant.

The results from the present investigation demonstrate that the FTGOT is a valid and reliable instrument in assessing misconceptions in geometrical optics.
Research in Science and Technological Education: Volume 35, Issue 2, Pages 238-260
Subjects Levels Resource Types
Education Foundations
- Alternative Conceptions
- Assessment
= Conceptual Assessment
= Instruments
Optics
- Geometrical Optics
- Lower Undergraduate
- Reference Material
= Article
= Research study
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- Educators
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© 2017 Taylor & Francis Online
Record Creator:
Metadata instance created July 18, 2018 by Bruce Mason
Record Updated:
July 18, 2018 by Bruce Mason
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April 17, 2017
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AIP Format
D. Kaltakci-Gurel, A. Eryilmaz, and L. McDermott, Res. Sci. & Technol. Educ. 35 (2), 238 (2017), WWW Document, (https://dx.doi.org/10.1080/02635143.2017.1310094).
AJP/PRST-PER
D. Kaltakci-Gurel, A. Eryilmaz, and L. McDermott, Development and application of a four-tier test to assess pre-service physics teachers’ misconceptions about geometrical optics, Res. Sci. & Technol. Educ. 35 (2), 238 (2017), <https://dx.doi.org/10.1080/02635143.2017.1310094>.
APA Format
Kaltakci-Gurel, D., Eryilmaz, A., & McDermott, L. (2017, April 17). Development and application of a four-tier test to assess pre-service physics teachers’ misconceptions about geometrical optics. Res. Sci. & Technol. Educ., 35(2), 238-260. Retrieved February 24, 2020, from https://dx.doi.org/10.1080/02635143.2017.1310094
Chicago Format
Kaltakci-Gurel, D, A. Eryilmaz, and L. McDermott. "Development and application of a four-tier test to assess pre-service physics teachers’ misconceptions about geometrical optics." Res. Sci. & Technol. Educ. 35, no. 2, (April 17, 2017): 238-260, https://dx.doi.org/10.1080/02635143.2017.1310094 (accessed 24 February 2020).
MLA Format
Kaltakci-Gurel, Derya, Ali Eryilmaz, and Lillian C. McDermott. "Development and application of a four-tier test to assess pre-service physics teachers’ misconceptions about geometrical optics." Res. Sci. & Technol. Educ. 35.2 (2017): 238-260. 24 Feb. 2020 <https://dx.doi.org/10.1080/02635143.2017.1310094>.
BibTeX Export Format
@article{ Author = "Derya Kaltakci-Gurel and Ali Eryilmaz and Lillian C. McDermott", Title = {Development and application of a four-tier test to assess pre-service physics teachers’ misconceptions about geometrical optics}, Journal = {Res. Sci. & Technol. Educ.}, Volume = {35}, Number = {2}, Pages = {238-260}, Month = {April}, Year = {2017} }
Refer Export Format

%A Derya Kaltakci-Gurel
%A Ali Eryilmaz
%A Lillian C. McDermott
%T Development and application of a four-tier test to assess pre-service physics teachers' misconceptions about geometrical optics
%J Res. Sci. & Technol. Educ.
%V 35
%N 2
%D April 17, 2017
%P 238-260
%U https://dx.doi.org/10.1080/02635143.2017.1310094
%O text/html

EndNote Export Format

%0 Journal Article
%A Kaltakci-Gurel, Derya
%A Eryilmaz, Ali
%A McDermott, Lillian C.
%D April 17, 2017
%T Development and application of a four-tier test to assess pre-service physics teachers' misconceptions about geometrical optics
%J Res. Sci. & Technol. Educ.
%V 35
%N 2
%P 238-260
%8 April 17, 2017
%U https://dx.doi.org/10.1080/02635143.2017.1310094


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