Surveys of freshmen students revealed that the number who say there is a "very good chance" they will volunteer in their communities

A) is significantly larger than the number who actually do.
B) is nearly twice what it was 20 years ago.
C) has held steady for the past 40 to 50 years.
D) has declined somewhat in recent decades.


B

Psychology

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In order to convert a number to a z-score, it is necessary, within a group of scores, to know the mean and the

a. range. b. correlation. c. mode. d. standard deviation.

Psychology

A time-series design is:

a. a within-subjects design. b. a between-subjects design. c. a mixed design. d. none of these

Psychology

The validity scales of the MMPI-2 are included to detect when people are answering dishonestly

Indicate whether the statement is true or false.

Psychology

The concept of reaction range emphasizes that

A) human behaviors are determined by a wide array of genetic factors, and the environment contributes very little to human diversity. B) an infant's range of behavior is determined by genetic factors, whereas an adult's range of behavior is determined by the environment. C) human behaviors are determined by wide differences in environments, and genetics accounts for very little human diversity. D) genetic factors determine the field of possible outcomes, and the environment affects the emergence of specific outcomes within this field.

Psychology