Of the following, the design that best controls for internal validity threats is the
a. posttest only control group design.
b. pretest-posttest group design.
c. time series design.
d. Solomon four-group design.
d
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What is one of the most popular examples of the interactive geometry programs?
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Approximately how many states allow charter schools?
a. all 50 b. 44 c. five d. 25
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Quartiles divide scores into ______ units:
a. 4 b. 8 c. 10 d. 25
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In terms of child abuse, __________is defined as an act of omission or the absence of an action
a. Physical abuse b. Emotional abuse c. Verbal abuse d. Neglect
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