AI Article Synopsis
- Item analysis is essential for evaluating the quality of test questions, specifically the Routine Blood Transfusion Knowledge Questionnaire (RBTKQ-2) in this study.
- Out of 305 nurses who completed the questionnaire, 3% found one item easy, while 47% found 15 items moderately difficult, and 50% found 16 items difficult; the majority of the items were effective at differentiating knowledge levels.
- The new optimized version, RBTKQ-O, was developed using insights from the item analysis to address past limitations, making it suitable for researchers and academics globally.
Article Abstract
Item analysis is important in examining the quality of items. The main aims of this sub-study were to assess and improve the psychometric properties of the modified version of the Routine Blood Transfusion Knowledge Questionnaire (RBTKQ-2) and produce an optimized version (RBTKQ-O) of it. Statistical item analysis was performed on the RBTKQ-2 after completion by 305 nurses. There were one (3%) easy, 15 (47%) moderately difficult, and 16 (50%) difficult items. Twenty six (81%) items and six (19%) had positive significant and weak point-biserial correlation respectively. The majority of distractors ( = 66, 64%) were functional. Four sources of information, including item analysis data, informed the development of the RBTKQ-O. The RBTKQ-O addressed the limitations that were identified in the versions published earlier. This version can be used by researchers and academics worldwide.
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| http://dx.doi.org/10.1891/JNM-D-20-00112 | DOI Listing |
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