To maximize the internal validity of an experiment, it is best to make sure that
A) patients are fully aware of which condition of the independent variable they are receiving.
B) a heterogeneous group of patients are selected for the study.
C) the control and experimental groups receive the same experience except for the dependent variable.
D) the control and experimental groups receive the same experience during the study except for the independent variable.
D
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A patient who is nonresponsive and remains still in odd postures may be diagnosed with which subtype of schizophrenia?
a. Disorganized b. Undifferentiated c. Catatonic d. Residual
Dr. Samson wanted to know how college students in his state would vote during the next election. By sampling the seniors at his college, he can get a representative sample
Indicate whether this statement is true or false.