Using rating scales for the assessment of physical self-concept: Why the number of response categories matters
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
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Using rating scales for the assessment of physical self-concept : Why the number of response categories matters. / Freund, Philipp Alexander; Tietjens, Maike; Strauss, Bernd.
in: Measurement in Physical Education and Exercise Science, Jahrgang 17, Nr. 4, 01.10.2013, S. 249-263.Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
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TY - JOUR
T1 - Using rating scales for the assessment of physical self-concept
T2 - Why the number of response categories matters
AU - Freund, Philipp Alexander
AU - Tietjens, Maike
AU - Strauss, Bernd
PY - 2013/10/1
Y1 - 2013/10/1
N2 - The current study employs Mixture Distribution Rasch models to compare the psychometric properties of two rating scale variants (original rating scale with six response categories, N = 806 school students; a variant with four response categories, N = 905 school students) for five specific scales of the Physical Self-Description Questionnaire. In most cases, two-class solutions best fit the data, suggesting the presence of response sets. In particular, students with low educational levels appear to have problems using as many as six response categories correctly. The results suggest that for the Physical Self-Description Questionnaire, using a rating scale with six response categories can be problematic, because the test scores psychometric qualities may be substantially different across (latent) subgroups. Also discussed are implications for the use and development of assessment measures in general, highlighting the suitability of item response theory models for the investigation of test score properties and the need for heterogeneous samples.
AB - The current study employs Mixture Distribution Rasch models to compare the psychometric properties of two rating scale variants (original rating scale with six response categories, N = 806 school students; a variant with four response categories, N = 905 school students) for five specific scales of the Physical Self-Description Questionnaire. In most cases, two-class solutions best fit the data, suggesting the presence of response sets. In particular, students with low educational levels appear to have problems using as many as six response categories correctly. The results suggest that for the Physical Self-Description Questionnaire, using a rating scale with six response categories can be problematic, because the test scores psychometric qualities may be substantially different across (latent) subgroups. Also discussed are implications for the use and development of assessment measures in general, highlighting the suitability of item response theory models for the investigation of test score properties and the need for heterogeneous samples.
KW - Psychology
KW - Mixture Distribution Rasch model
KW - physical self-concept
KW - Physical Self-Description Questionnaire
KW - rating scales
KW - response categories
UR - http://www.scopus.com/inward/record.url?scp=84885968745&partnerID=8YFLogxK
U2 - 10.1080/1091367X.2013.807265
DO - 10.1080/1091367X.2013.807265
M3 - Journal articles
VL - 17
SP - 249
EP - 263
JO - Measurement in Physical Education and Exercise Science
JF - Measurement in Physical Education and Exercise Science
SN - 1091-367X
IS - 4
ER -