1. In two-way ANOVA, a main effect for variable A means that Select one: a. the
ID: 3249215 • Letter: 1
Question
1.
In two-way ANOVA, a main effect for variable A means that
Select one:
a. the effect of variable A is not the same over all levels of variable B.
c. the effect of variable A is significant when averaged over all levels of variable B.
d. the effect of variable A is the same over all levels of variable B.
2.
According to the Central Limit Theorem, the sampling distribution of the means approaches a __________ distribution as the sample size __________, regardless of the shape of the original distribution.
Select one:
b. normal; decreases
c. 2; decreases
d. normal; increases
3.
When graphing the results of an experiment, the dependent variable scores would be placed
Select one:
b. to the left of the independent variable scores.
c. on the x axis.
d. on the y axis.
4.
The major difference between t tests and ANOVA is that t tests
Select one:
a. make different assumptions about the populations from which we sample.
c. are limited to two conditions.
d. compare group variances.
5.
How many interactions are possible for a 3 x 3 factorial design?
Select one:
b. 1
c. 0
d. 9
6.
The independent samples t test assumes that the independent variable affects the __________ of the populations.
Select one:
a. means
b. variances
c. standard deviations
7.
The statistical test that compares two or more means is a/an
Select one:
a. chi square.
c. ANOVA.
d. correlation.
Explanation / Answer
2.
According to the Central Limit Theorem, the sampling distribution of the means approaches a normal distribution as the sample size increases, regardless of the shape of the original distribution.
d. normal; increases
3:
When graphing the results of an experiment, the dependent variable scores would be placed
d. on the y axis.
4:
The major difference between t tests and ANOVA is that t tests
Select one:
c. are limited to two conditions.
5.
How many interactions are possible for a 3 x 3 factorial design?
There are two variable each with three levels so number of interaction possible is 1.
b. 1
7.
The statistical test that compares two or more means is a/an
c. ANOVA.
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