A distinguishing characteristic of the nonequivalent control-group design is that the
a. control group does not receive a pretest
b. researcher has control over confounding variables
c. experimental and control treatments are randomly assigned to the groups
d. subjects are not randomly assigned to the experimental and control groups
d
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It is difficult to say that IQ tests predict career success in a definitive way because ____
a. most real world problems are often complicated and do not have the kind of simple, definite solutions IQ tests reward b. IQ exams lack the ability to measure a person's working memory and intellectual quotient accurately c. most IQ questions are too complex and cannot be applied to everyday situations d. most IQ tests are given in a group format and this does not lend itself to measuring a person's ability to manage his or her social environment
According to the Levels of Processing theory, Phoebe will be better able to recall information for her Art History exam if she studies by
A. memorizing the colors used in each painting. B. thinking about how each painting is personally relevant to her. C. focusing on the meaning of the title of each painting. D. alphabetizing the names of the paintings.
The threat to internal validity associated with differences between pre-existing groups when participants are not randomly assigned is
a. history. b. maturation. c. statistical regression. d. selection.
What is their effect size for the store variable?
a. .993
b. .16
c. .06
d. .76