Quasi-experiments using nonequivalent comparison groups without random assignment can be credible, assuming that the comparability of the experimental and comparison groups is plausible-especially if the researcher provides substantial evidence of that comparability
Indicate whether the statement is true or false
True
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An increase in education is associated with an increase in income. This is an example of what type of relationship?
A. negative B. positive C. symmetrical D. no relationship exists
Six to eight weeks after an initial survey mailing, a survey researcher should do which of the following to attempt to get nonrespondents to complete their survey?
a. Send a reminder postcard or a new envelope b. Send a letter reminding people to reply c. Call to make sure respondents received their surveys d. Send a token financial reward e. Use a different mode of delivery or administer the questionnaire over the phone
Research indicates that children show preference for gender-stereotyped toys by the age of
A) 18 months. B) 3. C) 5. D) 7.
Which type of change process is closely associated with the process of implementation?
A. progressive-oriented B. mission-concerned C. worker–client D. task-centered