What is being established if items in the test are consistently answered by the students?
What is reliability in assessment?Reliability refers to whether an assessment instrument gives the same results each time it is used in the same setting with the same type of subjects. Reliability essentially means consistent or dependable results. Reliability is a part of the assessment of validity.
How do you establish reliability of a test?Assessing test-retest reliability requires using the measure on a group of people at one time, using it again on the same group of people at a later time, and then looking at test-retest correlation between the two sets of scores. This is typically done by graphing the data in a scatterplot and computing Pearson's r.
What is item analysis of a test?Item analysis is a process which examines student responses to individual test items (questions) in order to assess the quality of those items and of the test as a whole.
What is reliability and validity in assessment?The reliability of an assessment tool is the extent to which it consistently and accurately measures learning. The validity of an assessment tool is the extent by which it measures what it was designed to measure.
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