How might a moderator variable affect the relationship between a predictor and an outcome variable? (You may select more than one option.)
A. Strength of the relationship
B. Direction of the relationship
C. Strength of the relationship between the predictor and the moderator
D. Direction of the relationships with other predictor variables
Answer:
A. Strength of the relationship
B. Direction of the relationship
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Which statement is the most accurate one about portfolios?
a) The larger the portfolio, the better. b) There is one basic format for a portfolio. c) Put many big items into a plastic envelope at the end of the portfolio. d) Make a separate portfolio for each type of occasion.
A teacher designed a study to investigate the effect of using computer exercises to teach second grade math concepts. This research could be described as
a. basic, experimental, and qualitative. c. basic, nonexperimental, and quantitative. b. applied, experimental, and quantitative. d. applied, nonexperimental, and qualitative.
For a measurement tool to be valid, it must measure what it is intended to measure
Indicate whether the statement is true or false.
Which refers to the time when certain experiences are particularly important for later development?
A. sensitive B. critical C. vital D. crucial