Joe uses age, family size, and income to predict scores on a survey of happiness. The results were statistically significant with a coefficient of determination of 64%. He collects a new sample and examines the regression equation. In Joe's second sample, the common variance will likely __________ due to __________
a. decrease, attenuation
b. increase, replication
c. decrease, shrinkage
d. increase, regression.
c
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Which is most related to the external validity of the study?
a. Procedures b. Instrumentation c. Review of the literature d. Sampling e. Statement of the problem
The standard error of estimate, se, is the standard deviation of
a. the predicted scores on Y. b. the distribution of the observed Y scores. c. the differences between actual and predicted Y scores. d. the X scores used to predict Y.
The learning strategy in which students learn to review by saying aloud to themselves the main points of a lesson is
called a. self-control training. b. social training. c. verbal rehearsal. d. error monitoring. e. drill and practice.
The idea that adolescence is a time of conflict and alienation is an accurate description of
A. almost all families. B. families with male adolescents. C. families with female adolescents. D. no more than 20% of all families.