If a is the number of levels of Factor A and b is the number of levels of Factor B, the degrees of freedom associated with the interaction of these two variables equals _____
a. (a - 1)(b - 1) c. (a - 1) + (b - 1)
b. ab(n - 1) d. N - 1
A
The degrees of freedom for the interaction of a between subjects factorial ANOVA is (a - 1)(b - 1). N - 1 is the degrees of freedom for the sum of squares total, and ab(n - 1) is the degrees of freedom for the error term.
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Projective tests
a. are objectively scored. b. are used mostly by cognitive behavioral therapists. c. involve the presentation of stimuli that elicit standardized responses. d. involve the presentation of ambiguous stimuli.
The mode can be used with _____ data
a. nominal, ordinal, interval, and ratio b. only ordinal c. only nominal d. only interval and ratio
Otilia is furious when she gets back an exam that she thought she should have aced. Instead, she receives a low C, and attributes it to a water main repair involving heavy construction equipment going on less than 10 yards from the open classroom windows. Otilia's explanation relies on ____ factors
a. internal, stable b. external, stable c. internal, unstable d. external, unstable
If the population of difference scores represents a normal distribution, we may use ______ to find our tcrit value.
A. analysis of variance B. the t Distribution Table C. Unit Normal Table D. t score