PSYC 333 Lecture Notes - Lecture 8: Interquartile Range, Dfs Furniture, Null Hypothesis
7 May 2018
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PSYC 305 – STATISTICS FOR EXPER DESIGN, WINTER 2018
PSYC 305 MIDTERM EXAM
Place: McIntyre 522Time: 11:40-12:30 PM, March 1 (TR)
Format: 25 multiple-choice questions (closed-book)
There will be No Calculations, and No Calculators allowed anyway
Question 1
In experiments the independent variable is manipulated to determine:
a. effects on the individual participants
c. effects of certain stimuli
d. relation to other variables
b. effect on the dependent variable
(Independent Var. (factor) used to have an effect on Dependant Var.)
Question 2
If we calculated an effect size and found it was r = .42 which expression
would best describe the size of effect.
a. small
b. small-to-medium
c. large
d. medium-to-large
Question 3
The Kolmogorov-Smirnov test can be used to test:
b. Whether group variances are equal.
find more resources at oneclass.com
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PSYC 305 – STATISTICS FOR EXPER DESIGN, WINTER 2018
c. Whether scores are measured at the interval level.
d. Whether group means differ.
a. Whether data are normally-distributed.
Question 4
The assumption of homogeneity of variance is met when:
a. The variance in one group is twice as big as that of a different group.
c. The variance across groups is proportional to the means of those
groups.
d. The variance is the same as the inter-quartile range.
b. Variances in different groups are approximately equal.
So Sample Means are quite Similar to each other
Question 5
Levene’s test tests whether:
a. Data are normally-distributed.
c. The assumption of sphericity has been met.
d. Group means differ.
b. The variances in different groups are equal.
Question 6
In a one-way ANOVA problem, which of the following is an estimate of the
variance of individual measurements (after the treatment effects have been
accounted for)?
a. MS(between)
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Place: mcintyre 522 time: 11:40-12:30 pm, march 1 (tr) There will be no calculations, and no calculators allowed anyway. In experiments the independent variable is manipulated to determine: effects on the individual participants, effects of certain stimuli, relation to other variables, effect on the dependent variable (independent var. (factor) used to have an effect on dependant var. ) If we calculated an effect size and found it was r = . 42 which expression would best describe the size of effect: small, small-to-medium, large, medium-to-large. The kolmogorov-smirnov test can be used to test: whether group variances are equal. Psyc 305 statistics for exper design, winter 2018: whether scores are measured at the interval level, whether group means differ, whether data are normally-distributed. So sample means are quite similar to each other. Levene"s test tests whether: data are normally-distributed, the assumption of sphericity has been met, group means differ, the variances in different groups are equal.
