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Histogram showing the discriminatory index of the SSAT

Histogram showing the discriminatory index of the SSAT

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Figure 2: Scree Plot for the SSAT
Figure 3: Histogram showing the discriminatory index of the SSAT
Figure 5: Histogram showing the guessing index of the SSAT
-Parameter Index for the SSAT
Item Response Theory Validation of Social Studies Aptitude Test
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  • Dec 2023
This study assessed the psychometric properties of the Social Studies Aptitude Test (SSAT) using the 3-Parameter Item Response Theory Model. Four research questions guided the study. A 100-item multiple choice SSAT, developed by Jessa, et al. (2023) was used as an instrument for the study. The data were collated and analysed using chi-square goodne...
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