In general, as the sample size (N) increases:

A. The confidence interval is unaffected
B. The confidence interval becomes less accurate.
C. The confidence interval gets narrower.
D. The confidence interval gets wider.


Answer: C

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The 2000 graduating class of UC-Berkeley has been sampled every four years to gather attitude data and information on career development. This is an example of a ____ survey

a. cohort c. trend b. panel d. cross-sectional

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How does the alternating treatments design differ from the changing conditions design?

a. The alternating treatments design is used to determine the effectiveness of more than one intervention, while the changing conditions design is used to increase the standard for acceptable performance. b. Unlike the changing conditions design where interventions are introduced consecutively, in the alternating treatments design one intervention is rapidly substituted for another. c. The alternating treatments design is a variation of the multiple baseline design, whereas the changing conditions design is a variation of the reversal design. d. Unlike the changing conditions design which is used to assess the effect of behaviors over several settings, the alternating treatments design is used to assess the effect several observers.

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Unless a test is administered according to the __________ the results are invalid

Fill in the blank(s) with correct word

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An interconnected set of teaching actions designed to accomplish specific goals is:

a. the knowledge of subject matter. b. pedagogical knowledge. c. professional decision making. d. a teaching strategy.

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