Answer to Question 1
A
Answer to Question 2
D
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The history threat is the occurrence of events concurrent with the independent variable that can affect the outcome. The maturation threat arises from processes occurring as a result of time (e.g., growth, fatigue) rather than the independent variable. The selection threat reflects biases stemming from preexisting differences between groups. RCTs have a clear superiority for testing causal hypotheses. Internal validity is the extent to which it can be inferred that the independent variable is truly causing the outcome.
USF Biologist Taegan McMahon conducts experiments on chlorothalonil at a research facility in East H
TrUe....FaLsE
Ethics in social research are of vital concern to sociologists. As discussed in the text, ...
Research that has examined babies' ability to recognize themselves develops in the 2 year
Research Methods
RESEARCH TECHNIQUE