Discuss the evidence of Validity

 

Discuss the evidence of Validity represented in the following statements:

1. For a sample of 150 students in grade 10, scores on the odd-numbered items were correlated with scores on the even-numbered items.
2. Score from 300 first-year students obtained from a September administration of the test was correlated with scores of the same group obtained from a February administration.

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1. Scores of 200 first-year students obtained from a September administration of the test were correlated with the general science course grades of these same students obtained from school records in January.
2. Scores of students who had taken one, two, three, four, science courses were compared to see if they differed on the average.