Briefly explain the confounds of instrumentation and mortality
What will be an ideal response?
Instrumentation is a threat to internal validity in which changes in the dependent variable may be due to changes in the measuring device. Mortality, or attrition, is a threat to internal validity in which differential dropout rates may be observed in the experimental and control groups, leading to inequality between the groups.
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The development of scientific classification systems proceeds in an orderly fashion over several years from the first steps involving description to later stages involving
a. diagnosis. b. theory. c. dimensions. d. categories.
Some psychologists believe that truly exceptional creativity, such as that of Edison, Freud, Mozart, or Picasso, requires a rare combination of
a. high intelligence, extroversion, and neurosis. b. high intelligence, introversion, and being socially inept. c. psychosis, intuition, and perseverance. d. thinking skills, personality, and a supportive social environment.
Three-year-old Johnny was classically conditioned to salivate to a bell that was paired with lemon juice
After this conditioned response was extinguished, the experimenter presented the bell the following day, and Johnny responded by salivating again to the bell, at least at first. Johnny's return to the learned response is known as a. latent learning. b. response chaining. c. spontaneous recovery. d. stimulus control.
If other factors are held constant, the bigger the sample is, the greater the likelihood of rejecting the null hypothesis
Indicate whether the statement is true or false