Item response theory and computer adaptive testing of the sexual knowledge scale of the sexual knowledge and attitude test in a college sample
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11510%2F24%3A10490509" target="_blank" >RIV/00216208:11510/24:10490509 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ejbf2lN3r7" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ejbf2lN3r7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/19419899.2024.2332630" target="_blank" >10.1080/19419899.2024.2332630</a>
Alternative languages
Result language
angličtina
Original language name
Item response theory and computer adaptive testing of the sexual knowledge scale of the sexual knowledge and attitude test in a college sample
Original language description
Our study addresses the limited availability of well-validated scales for assessing general sexual knowledge among college populations. To fill this gap, we examined the psychometric properties of a 41-item sexual knowledge scale derived from the Sexual Knowledge and Attitudes Test - Adolescents (SKAT-A) in a sample of young adults aged 18-25 (N = 1,291). We employed classical test theory (CTT) procedures, followed by item response theory (IRT) and computerized adaptive testing (CAT), to refine the SKAT-A knowledge scale. Both CTT and IRT analyses identified six items for removal due to poor discrimination and difficulty parameters. A confirmatory factor analysis supported a well-defined unidimensional latent trait of sexual knowledge. The results of CAT simulations using dynamic item administration demonstrated the scale's measurement precision, with moderate test reliability and relatively low standard errors. On average, there was a 54.3% reduction in the number of items administered without compromising scale reliability. This study concludes that the SKAT-A efficiently assesses a unidimensional trait of sexual knowledge in college-attending young adults. It highlights that only a subset of items from the full test bank is necessary to achieve this, providing a practical and reliable tool for assessing sexual knowledge in this population.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30306 - Sport and fitness sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Psychology and Sexuality
ISSN
1941-9899
e-ISSN
1941-9902
Volume of the periodical
15
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
18
Pages from-to
661-678
UT code for WoS article
001189415300001
EID of the result in the Scopus database
2-s2.0-85189147110