Bob is a clinician who developed a new measure to diagnose attention deficit hyperactivity disorder (ADHD). The assessment is designed to assess problems with attention, problems with impulsivity, and problems with hyperactivity. He gave it to a representative sample of children ages 6–18. For what purpose did Bob use this sample of children?a. standardization
b. normalization
c. to test reliability
d. to test validity

Does the weight loss program have practical significance? a. no, the program is not practically significant because the results are likely to occur even if the weight loss program has no effect. b. yes, the program is practically significant because the results are too unlikely to occur by chance. c. yes, the program is practically significant because the amount of lost weight is large enough to be considered practically significant. d. no, the program is not practically significant because the amount of weight lost is trivial.

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