Error Variance [1 of 2] Sources of error have been known to affect a test's reliability and precision. Identify the four sources of test error and six factors related to these sources of error that are particularly important to consider. Develop your own examples for each of these. Pilot Testing [2 of 2] Explain the importance of conducting a pilot test. Make a list of problems that could arise if a clinical practitioner, a human resources department, or a college (choose one) used a new test without carrying out a pilot test or validity study.
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