Psychological Science
In a normal distribution most scores are located:
at the high end of the distribution
at the low end of the distribution
in the centre of the distribution
at the extremes of the distribution
in the centre of the distribution
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Generalization is a key issue in:A. internal validity
B. external validity
C. a double-blind experiment
D. a single-blind experiment
Statements based on the systematic collection of data are:
A. empirical
B. dialectic
C. empathic
D. false
Data from a correlational study is usually shown as a:
A. scatterplot
B. pie chart
C. bar graph
D. b or c
The more exercise a person takes the fewer medical problems they report. This is an example of:
A. a curvilinear relationship
B. statistical independence
C. a positive correlation
D. a negative correlation
In an experiment examining the effect of mood on intelligence participants are randomly assigned to watch either a funny movie or a sad movie before they complete an IQ test. The funny movie is shown in a classroom, while the sad movie is shown in the student lounge. The most obvious problem with this experiment is:
A. lack of statistical validity
B. the IV is confounded
C. the use of random assignment
D. none of the above
Informed consent is typically obtained:
A. during an experiment
B. before an experiment
C. after an experiment
D. it is not typical to obtain informed consent
If income and happiness are positively correlated then a person with a low income would be predicted to be:
A. not depressed at all
B. less depressed than a person with a high income
C. more depressed than a person with a high income
D. cannot make a prediction from correlational data
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