Which of the following is not one of the caveats of using a t-test for independent samples?
A. Assume the mean difference comes from a normal distribution.
B. Assume homogeneity of variance.
C. Assume both samples are random and independent.
D. Assume the sample size is larger than 100.
Answer: D. Assume the sample size is larger than 100.
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Because survey data have some issues that can affect their validity, researchers are careful in checking the ______ of surveys and questionnaires when they are first used to make sure that they accurately measure the behaviors of interest.
A. internal validity B. external validity C. construct validity D. distribution validity
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Give the name for the chemical connection between a motor neuron and a muscle fiber
a. Motoric junction b. Neuromotoric synapse c. Neuromuscular junction d. Muscular synapse