Factorial designs are useful because they
a. allow multiple independent variables. c. examine interaction of variables.
b. build in extraneous variables. d. All of these are true.
Ques. 2Criterion contamination occurs when
a. a test is lacking in construct validity.
b. the criterion measurement is found to be invalid.
c. knowledge of predictor test scores influences decision-making.
d. errors are made in predicting criterion performance.
Ques. 3A static group comparison design has a control group, but
a. the posttest is not compared to anything.
b. the groups are not pretested to see change.
c. the equivalence of the groups is questionable.
d. b and c
Ques. 4An observed score is ____ if it has a ____ and does not vary from observation to observation.
a. valid; small true score c. reliable; small true score
b. valid; small error component d. reliable; small error component
Ques. 5In the following items, select the experimental design that best fits the descriptive statement. Regression is controlled by random assignment, but the main effects of testing and the interaction of testing with X are not determinable.
a. One-group, pretest-posttest design
b. Randomized subjects, posttest only, control-group design
c. Randomized subjects, pretest-posttest design control-group
d. Randomized Solomon four-group design
e. Counterbalanced design
Ques. 6The internal consistency of a test can be measured using
a. split-half procedure. c. inter-item correlations
b. item-total correlations. d. All of these are true.
Ques. 7In the following items, select the experimental design that best fits the descriptive statement. Failure to control history and maturation is a definite weakness.
a. One-group, pretest-posttest design
b. Randomized subjects, posttest only, control-group design
c. Randomized subjects, pretest-posttest design control-group
d. Randomized Solomon four-group design
e. Counterbalanced design
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