Identify a true statement about product rating scales.

A. It is a subject-completed instrument.
B. It is free from the rater's subjective judgments.
C. The product ratings can be done at any time.
D. It is the least preferred method used by researchers to collect data on products.


Answer: C

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In the researcher’s analysis of what influences self-esteem in adolescent girls he found that the interaction of time spent in daily physical activity and body image level was a significant predictor of self-esteem.  What sort of analysis does he need to do to work out the nature of the moderation effect?

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The 3 components of constructivism include

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