Q1.) The sum of squared deviations of each score from the grand mean is the ________.
Q2.) What is the effect of a conservative statistical test?
a) It minimizes the chances of both type 1 and type 2 errors.
b) It minimizes the chance of type 1 errors, but increases the chance of type 2 errors.
c) It minimizes the chance of type 1 errors, but increases the chance of type 3 errors.
d) It decreases the chance of type 2 errors.
Q3.) If a researcher reported an F-ratio with df = 2, 21 for a randomized one-way ANOVA, then there were ___________ conditions in the experiment and __________ total participants.
a) 2; 21
b) 3; 23
c) 2; 24
d) 3; 24
Q4.) When an observed difference between two means is unlikely to have occurred by chance, we say that the result has __________.
Q5.) In a study of the effects of caffeine on driving performance, researchers predict that those in the group given more caffeine will exhibit poorer driving performance. The researchers are using a __________ test.
a) two-tailed
b) directional
c) one-tailed
d) both b and c
Q6.) In ANOVA, the mean performance across all participants is represented by the __________
Q7.) Systematic variance and error variance comprise the __________ variance.
a) within-groups
b) total
c) between-groups
d) participant
Q8.) If in a randomized ANOVA there are 4 groups with 15 participants in each group, then the df for the F-ratio is equal to __________.
a) 60
b) 59
c) 3, 56
d) 3, 57
Q9.) What is the name of the category of statistical tests that do not involve the use of any population parameters?
___________________
Q10.) Why does APA recommend that we calculate a measure of effect size in addition to calculating the test statistic?