Most teenager girls who become pregnant do so because of contraceptive failure or problems that are encountered in using contraceptive methods
Indicate whether the statement is true or false
False
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If the group has 30 individuals, what are the degrees of freedom for a dependent-samples t-test?
a. 30 ? 1 b. 29 ? 1 c. 28 ? 1 d. 27 ?1
Developmental screenings are used to:
a. Identify children who may be high ability. b. Assess the progress of a program's development in reaching its goals. c. Evaluate a child's mastery of the standards. d. Identify children who may have developmental delays.
Indicate which of the following is true related to presentation of a research study
a. It may be assumed that the readers will arrive at the same conclusions as the writer. b. Using the hypothesis as the framework around which to organize the presentation and analysis of data is a useful strategy. c. Personal anecdotes, humorous asides, etc., should be used whenever possible to enliven a research report. d. It should be assumed by researchers that readers will deduce the implications of the results themselves.
Which of the following is true about using extinction?
a. Behaviors placed on extinction reduce quickly. b. Behaviors placed on extinction often increase in frequency or intensity before they begin to diminish. c. Extinction is only appropriate for behaviors that have an escape function. d. Behaviors placed on extinction reduce slowly, but once eliminated, they never reappear.