Which of the following is NOT usually included on the summary table for an ANOVA?
a. mean squares between and within c. critical value of F
b. sums of squares total d. degrees of freedom
When reporting obtained F values, according to APA style, one must report the _____ in parentheses between the F and the value of the obtained F.
a. degrees of freedom c. sums of squares
b. alpha level d. Q values
In order to interpret the magnitude effect following a one way ANOVA, you should _____.
a. consult the F table
b. make a bar graph of the means
c. decide whether the difference is < .20, between .20 and .50, between .50 and .80, or greater than .80
d. consult the table for critical values of Q
Effect size for the one way ANOVA is a ratio of the _____between to the total sums of squares.
a. mean square total c. total degrees of freedom
b. unexplained variance d. sums of squares between
If your results are not significant, you should
a. explain them as if they were significant anyway
b. conclude that the results cold have been obtained by chance
c. explain what would have happened if the results had been significant
d. none of these
If you have decided that the highest probability of a Type I error that you are willing to tolerate is .05 and you find that your result is significant at the .07 level of confidence, what should you do? You should _____.
a. change your alpha level at the end of the data analysis
b. conclude that your results approached significance
c. conclude that your results were significant anyway
d. conclude that your results were not significant
In order to find critical values of Q in a table, one has to know which of these?
a. degrees of freedom between
b. the probability of a Type II error
c. the power of the experiment
d. the number of treatment levels or groups
If the calculated F is greater than the critical value of F, the experimenter should conclude that _____.
a. chance probably caused the difference between the group means
b. none of the group means are significantly different from each other
c. the treatment probably caused the differences in the group means
d. multiple t tests would probably have been a better way to analyze the results
If the calculated value of F is less than the critical value of F, the experimenter should conclude that _____.
a. chance is likely to have caused the results
b. the treatment is likely to have caused the results
c. chance alone cannot explain the results
d. b and c
If the calculated value of F is less than the critical value of f, the experimenter should conclude that _____.
a. there is a significant difference among groups and proceed to a test of multiple comparisons.
b. all groups are significantly different from one another
c. only the highest and lowest group means are significantly different from one another
d. none of the group means differ significantly from one another
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