In a signal-to-noise ratio, the "signal" represents the
a. number of participants in both groups.
b. number of participants minus some value.
c. variability in scores within the groups.
d. difference between the means of both groups.
d
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Jacob has a drinking problem and is given a drug that makes him feel nauseated when he ingests alcohol. After becoming sick several times when having a beer at a bar after work, Jacob becomes nauseated while driving past a bar. In this example, the bar can be considered the:
A. unconditioned stimulus B. unconditioned response C. conditioned stimulus D. conditioned response
Regarding patterns of suicide, which of the following statements is FALSE?
a. Married individuals have higher rates of suicide than single persons. b. More than half of all suicide victims are over 45 years old. c. Caucasians generally have higher suicide rates than do non-Caucasians with the exception of Native Americans. d. Men have a higher suicide death rate than women do.
A researcher would like to know whether his new dog training program is effective. He tests a group of dogs before they start the program, and then again afterwards. What research design has he used?
a. one-group pretest-posttest design b. pretest-posttest control group design c. posttest only control group design d. nonequivalent control group design
The clear protective coating over the front part of the eye is the ______
a) fovea b) sclera c) cornea d) iris