# Question 7 correct 2 2 pts within groups degrees of

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Question 72 / 2 pts
Within-groups degrees of freedom in a two-way ANOVA iscalculated by:<br>Within-groups degrees of freedom in a two-way ANOVA is calculated by:
Question 8Correct!2 / 2 ptsWithin-groups degrees of freedom is calculated by:<br>Within-groups degrees of freedom is calculated by:
Question 9Correct!2 / 2 pts<p>F is obtained by dividing ________ by ________.</p
Question 10Incorrect0 / 2 ptsIn which of the following situations would it be necessary touse a within-groups ANOVA?<br>In which of the following situations would it be necessary to use a within-groupsANOVA?A longitudinal study follows a group of kindergarten children through highschool and assesses their body mass index at four timepoints.
A researcher is interested in whether a sensitivity training class changesattitudes toward minority populations. The researcher assesses theseattitudes before and after the sensitivity training class.A researcher is interested in the effects of distraction on drivingperformance and randomly assigns participants to one of three distractiongroups.Question 11Correct!2 / 2 ptsA hypothesis test with two nominal independent variables andan interval dependent variable is a:<br>
Question 12Correct!2 / 2 ptsAccording to Cohen's conventions, an R2 of 0.02 is considered
According to Cohen's conventions, an R2 of 0.02 is considered to be a(n)________ effect size.
Question 13Incorrect0 / 2 ptsIf you calculate an F statistic and find that it is negative, thenyou know that:<br>If you calculate an F statistic and find that it is negative, then you know that:you have made a calculation error.
the difference among the group means is greater than what would haveoccurred by chance.the within-groups variance exceeds the between-groups variance.
Question 14Correct!2 / 2 ptsThe z, t, and F distributions have something in common: thenumerator of the test statistic:<br>The z, t, and F distributions have something in common: the numerator of the teststatistic:
Question 15Correct!2 / 2 ptsIn a two-way factorial ANOVA, between-groups variance isdivided into:<br>In a two-way factorial ANOVA, between-groups variance is divided into:
Question 16Correct!

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