Subgroups are to stratified random sampling as ____ is/are to the randomized block design.
a. homogeneity
b. randomization
c. blocks
d. order effects
A memory test in which participants recall items in any order they choose is called a
a. yes/no recall test.
b. paired associate recall test.
c. free recall test.
d. serial recall test.
A two-factor study compares the effectiveness of two different treatments (factor 1) by measuring performance before treatment, immediately after treatment, and 3 months after treatment (factor 2) for each participant. Half of the participants are randomly assigned to treatment A and half to treatment B. The results from this study should be evaluated with an independent-measures two-factor analysis of variance.
a. True
b. False
Indicate whether the statement is true or false
The blocks in the randomized block design are ____.
a. constructed to be homogeneous
b. randomly constructed
c. constructed to be representative of the population
d. self-selected
Ebbinghaus measured forgetting as a function of retention interval and found that
a. forgetting is very slow at first but then speeds up.
b. forgetting is rapid at first and the levels off.
c. the amount of forgetting decreases steadily with retention interval.
d. the amount of forgetting remains constant across all retention intervals.
In a two-factor study, it is possible to have one experimental factor and one nonexperimental factor.
a. True
b. False
Indicate whether the statement is true or false
The key idea in the randomized block design is that variability within each block____.
a. is greater than the variability of the entire sample
b. is less than the variability of the entire sample
c. can be used to estimate the variability in the entire sample
d. cancels out variability in the entire sample
Ebbinghaus found that when he attempted to relearn a list that he had learned once before,
a. he relearned the list faster the second time.
b. he showed no savings.
c. he needed more trials to reach criterion.
d. it took the same amount of time to learn as it did the first time.
In a two-factor study, it is possible to have one between-subjects factor and one within-subjects factor.
a. True
b. False
Indicate whether the statement is true or false
Michelle is conducting an experiment in which she is evaluating the effects of reward magnitude and reward immediacy on classroom behavior. She has two levels of reward (Low and High) and two levels of immediacy (Daily and Weekly) with four groups: Low-Daily, Low-Weekly, High-Daily, and High-Weekly. Michelle's design is best described as ____.
a. fully crossed
b. filled out
c. completed
d. totaled
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