Thomas is testing the effectiveness of different physical-education programs on improving fitness in elementary school children. Obviously, he cannot test every child in the world, so he selects 10 elementary schools in his state and randomly chooses children from each of those schools to test. What type of sampling is he using?

a. Stratified random
b. Simple random
c. Cluster
d. Quota


Ans: C

Psychology

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What will be an ideal response?

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What is the term for play that involves simple, repetitive activities typical of 3-year-olds?

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