hi,
i have developed a reading test with 24 items, how can i calculate its construct validity through factor analysis? i mean how can i enter its items into the spss , while each item has a different correct response?
can i consider the entire test as one factor called reading?
thnx
Samy A. Azer
This video answers your question-
https://www.youtube.com/watch?v=pRA3Wapx7fY
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Cristian Ramos-Vera
According to what he mentions, he must code 0 the incorrect answers and 1 the correct answers in the spss, which would be dichotomous variables and perform reliability and validity analysis by means of EFA-CFA according to the proposed model (e.g. unifactorial, etc).
https://www.researchgate.net/post/How_to_test_factor_analysis_binary_data_in_SPSS
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