Worksheet

Running Head : RESEARCH TOOLS FOR DATA COLLECTION

Research Tools for Data Collection

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Research Tools for Data Collection

1 . Validity describes the degree to which a tool measures the attribute it is designed to measure . Describe two ways in which you could evaluate the validity of a research tool

a . Content Validity is validity evidence that examines the items in the test whether these items measure what it is supposed to measure . The process usually involves competent experts in the field and they

meticulously review the items and the related references . These competent experts determine the basis for the respondents to make their judgment on the test items . Experts may also hold interviews and other methods to observe and evaluate the responses . In academic tests , for example in science aptitude tests , the test items are also referred to the textbooks , curricula , manuals and standards (Measurement Concept and Test Interpretation , n .d ,

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b . Consequential Validity is new validity evidence and it evaluates the consequences or results of the tests , whether they are expected or not Consequential validity may determine the effectiveness , the costs and benefits its intended beneficiaries . It may compare the risks taken by the respondents in making their decisions either way . Another way to find the degree of the evidence of validity is to evaluate efficiency of the implementation . These are the deviations to the intended or prescribed process of the assessment tools (Measurement Concept and Test Interpretation , n .d ,

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