Reference no: EM13581972

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?