Martin wants to establish the construct validity of his new scale, which he believes measures problems with attention in children. The higher the score on his new scale, the more attention problems the respondent should have. Which of the following findings would help support his case?
a. A positive correlation with an existing measure of ADHD.
b. A negative correlation with an existing measure of ADHD.
c. A positive correlation with an existing measure of mood problems.
d. All of these would establish the construct validity of Martin's new scale.
a
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