881. A strength of correlational designs is that they:
A. can demonstrate causation
B. do not require ethics board approval
C. can be used with variables which cannot be manipulated by a researcher
D. are more intrusive than experimental designs

882. A researcher uses an experimental design to study the effect of music on memory. In this experiment, the Independent Variable is:
A. music
B. memory
C. both music and memory
D. neither music nor memory

883. According to the text, which of the following is NOT a characteristic of a good theory?
A. it is parsimonious
B. it is falsifiable
C. it is common sense
D. it is general

884. Empirical statements are based on:
A. belief
B. data
C. intuition
D. common sense

885. 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

886. Creating equivalence among research participants is vital for:
A. experimental research
B. correlational research
C. descriptive research
D. equivalence is never vital

887. A researcher is interested in whether the results of her experiment (conducted in Canada) would be the same if the experiment were conducted in China. This researcher is concerned with:
A. internal validity
B. external validity
C. statistical validity
D. none of the above

888. Standard deviation is a measure of:
A. range
B. central tendency
C. inference
D. Dispersion

889. Generalization is a key issue in:
A. internal validity
B. external validity
C. a double-blind experiment
D. a single-blind experiment

890. 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

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