Demographic variables are often used as ________ variables.
A. causal
B. predictor
C. independent
D. criterion
Answer: B
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In scientific investigations, researchers must clearly define the variables under study by precisely describing how they will be measured or controlled. These definitions are referred to as
a. objective definitions. b. precise definitions. c. operational definitions. d. dictionary definitions.
Death anxiety is a multidimensional concept
Indicate whether the statement is true or false
Louise uses a drug that causes her to relax and go to sleep. Her attention is lowered, and she experiences mild euphoria along with decreased muscle coordination. Louise is using ____
a. ?a barbiturate b. ?cocaine c. ?LSD d. ?marijuana
A restriction of oxygen lasting a few minutes can produce cognitive deficits such as language delays and even mental retardation due to brain cell death. This restriction of oxygen is called
a. anorexia. c. apgar. b. anoxia. d. appropriate.