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Validity and Reliability Evidence by Mind Map: Validity
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Validity and Reliability Evidence

Internal Consistency: Splitting a test into two equal halves, (i.e. odd numbers vs even numbers), and comparing scores for correlation.

Alternate Forms or Equivalence: Administering two equivalent tests and then comparing scores.

Test-Retest, or Stability: The test is given more than once to determine correlation.

Construct Validity Evidence: Demonstrates a relationship between some theory and another set of variables, i.e. If you are testing a foreign language, then those skills should show improvement after much instruction.

Predictive Validity Evidence: Refers to how well the test predicts some future behavior, regardless of whatever else it may test.

Concurrent Criterion-Related Validity Evidence: Two tests administered at the same time to two groups.

Criterion-Related Validity Evidence: (Two types)

Content Validity Evidence: Checks that test items correspond to what is supposed to be covered in the test.

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Reliability: “Does the test yield the same or similar score rankings (all other factors being equal) consistently?” (Kubiszyn & Borich, 2010, p. 329).

Validity: “Does the test measure what it is supposed to measure?” (Kubiszyn & Borich, 2010, p. 329).