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Author Question: A randomly selected sample of a population for study is one in which: a. each member of the ... (Read 118 times)

melina_rosy

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A randomly selected sample of a population for study is one in which:
 
  a. each member of the population has an equal chance of being selected.
  b. participants are randomly assigned to the experimental or the control group.
  c. the members are put in a random order, and the researcher picks every third person.
  d. there is no method for selecting children for a study.

Question 2

Studies of children of different ages at the same time are best described as:
 
  a. correlational.
  b. cross-sectional.
  c. developmental.
  d. longitudinal.


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xthemafja

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