High-stakes testing is used for the purposes of providing results that have important consequences. Validity is the cornerstone upon which all measurement systems are built. This study applied the Item Response Theory principles to analyse Northwest University Kano Post-UTME Economics test items. The developed fifty (50) economics test items was administered to a sample of 600 students. The data obtained was analysed using XCALIBRE 4 and SPSS 20v softwares to determine items parameters base on IRT models. Indicate that, the test measure single trait by satisfying the condition of unidimensionality. Similarly, the goodness of fit test revealed that, the two parameter IRT model was more suitable since no misfit item was observed and the test reliability was 0.86. The mean examinee ability was 0.07 (SD = 0.94). The mean item difficulty was -0.63(SD = 2.54) and mean item discrimination was 0.28 (SD = 0.04). 16 (33%) items were identified as “problematic” based on difficulty indices, 35(71%) also failed to meet the set standards on the basis of discrimination parameters. it can be concluded that, using the IRT approach, the NWU Post-UTME items are not stable as far as item difficulty and discrimination indices are concerned. It is recommended that, the Post-UTME items should be made to pass through all process of standardisation and validation; test development and content experts should be involve in developing and validating the test items in order to obtain valid and reliable results which will lead to valid inferences
This research aims to know the influence of learning Education sosial studies elementary school against the formation of character social care students elementary school Islamic University of Kalimantan Muhammad Arsyad Al-Banjari Banjarmasin. This research using quantitative research approach with this type of correlation is Expost Facto. As for the data source or the respondents in this study are students elementary school Islamic University of Kalimantan Muhammad Arsyad Al-Banjari Banjarmasin four semester. As for the data collection Techniques used are observation, documentation, and question form. Before doing research, the instrument of research first tested the validity and reliability. The next test of its homogeneity and normality. After the data collected recently done data analysis. Analysis of the data used is the formula of the percentage and simple linear regression. From the results of the research there are the influence that is experienced by sosial studies education learning toward the formation of social caring character of students is 67%, and 33% there are other factors that influence.
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