Advanced Placement (AP), 13.05.2021 21:50 wow65
Which of the following methods best limits the influence of unknown variables in an experiment?
A- Random assignment
B-Correlational study
C-Debriefing
D-Stratified sampling
E-Subject matching
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What is the difference between a census and a study that is not a census? select one: a. a census by definition extends over a long period of time. b. a census involves interviews. c. a census collects data on the entire study population. d. a census involves a written survey.
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Jacobโs four-month-old infant is crying continuously. while jacobโs wife suggests that he pick up the baby, jacobโs mother thinks that picking up the baby each time she cries is bad for the baby. why is jacobโs wife right? a. babies sleep better when carried. b. babies learn to cry whenever they want someone to hold them. c. babies may choke if crying while lying on their back. d. babies develop a sense of trust that someone is there to provide care.
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Which of the following methods best limits the influence of unknown variables in an experiment?
A-...
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