In nonexperimental research, there is no random assignment nor manipulation of an independent variable.
a. True
b. False
Ans: a
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“What would be another way to put these fractions in ascending order, without determining lowest common denominator?” is an example of what type of question?
A. heuristic B. elicitation C. divergent D. elaboration
The difference between the group means in a pretest-posttest control group experimental design can be tested for statistical significance most precisely by
a. analysis of variance of the groups' means on the posttest. b. separate t-tests of the prepost difference for the experimental and for the control group. c. analysis of covariance on the groups' posttest means with pretest as the covariate. d. analysis of variance of the mean changes from pre- to posttest for the two groups.
Autism is most often identified:
a. At birth b. Prenatally c. At a child’s first birthday or beyond d. At any time
An example of a personal asset is a:
A) Job B) Paycheck C) Car D) All of the above E) None of the above