While conducting a year-long study on friendship patterns in the sixth grade, a researcher discovers that some of the students had reached puberty during that year while others had not
Which potential threat to internal validity would this example illustrate according to Campbell and his colleagues?
a. selection
b. instrumentation
c. maturation
d. history
c
Psychology
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Ellie is an early-maturing girl. Statistically, Ellie is at risk for _____.
Please choose the correct answer from the following choices, and then select the submit answer button. more resistance to social pressure a better body image than other girls a decline in academic motivation and more "acting out" behavior an interest in younger boys
Psychology
The oldest and most famous of the modern psychological models is the _____ model.
A)behavioral B)eclectic C)cognitive D)psychodynamic
Psychology