Which of the following terms in a one-factor within-subjects analysis of variance is principally associated with error variation?
Select one:
a. MSmodel
b. MSblock
c. MSresidual
d. MSTotal
Which of the following terms in a one-factor within-subjects analysis of variance is principally associated with...
Which of the following is not a factor that differentiates within-subjects and between-subjects designs? a. Within-subjects designs tend to have fewer participants. b. Between-subjects designs are more effective in demonstrating cause-and-effect. c. Within-subjects designs are more likely to be confounded by time-related factors and order effects. d. Between-subjects designs are more likely to be confounded by individual differences.
6. Typically, when comparing a within-subjects design to a between-groups design which of the following describe their differences in error variance? a. Within-subjects designs results in less error variance than between-groups. b. A within-subjects design results in more error variance than a between-groups design. C. A within-subjects design results in the same amount of error variance as a between-groups design d. There is no error variance in a within-subjects design, whereas a between- groups design does present some error variance....
Which of the following is expected if the null hypothesis is true for an analysis variance? a. SSbetween should be about the same size as SStotal b. SSbetween should be about the same size as SSwithin c. MSbetween should be about the same size as MStotal d. MSbetween should be about the same size as SSwithin
Which of the following is expected if the null hypothesis is true for an analysis of variance?a. SS (between) should be about the same size as SStotalb. SS (between) should be about the same size as SSwithinc. MS (between) should be about the same size as MStotald. MS (between) should be about the same size as MSwithin
1. The analysis of variance of a completely randomized, two-factor experiment led to the following results. SS Source of Variation Factor A Factor B Interaction Error Total 64.13333 3328.133 2520.933 417.6 6330.8 MS 32.0667 1664.07 630.233 11.6 2.764368 143.454 54.33046 1.1. Interpret these results, discussing what factors have a significant effect on the response variable. Use a significance level of 0.05. (5 points)
Analysis of variance compares the means of a response variable for several groups. ANOVA compares the variation within each group to the variation of the mean of each group. The ratio of these two is the F statistic from an F distribution with (number of groups - 1) as the numerator degrees of freedom and (number of observations - number of groups) as the denominator degrees of freedom. You intend to conduct an ANOVA with 4 groups in which each...
Analysis of variance compares the means of a response variable for several groups. ANOVA compares the variation within each group to the variation of the mean of each group. The ratio of these two is the F statistic from an F distribution with (number of groups - 1) as the numerator degrees of freedom and (number of observations - number of groups) as the denominator degrees of freedom. You intend to conduct an ANOVA with 4 groups in which each...
Analysis of variance compares the means of a response variable for several groups. ANOVA compares the variation within each group to the variation of the mean of each group. The ratio of these two is the F statistic from an F distribution with (number of groups - 1) as the numerator degrees of freedom and (number of observations - number of groups) as the denominator degrees of freedom. You intend to conduct an ANOVA with 4 groups in which each...
In a TWO-factor Analysis of Variance, total variance is partitioned into which of the following? (Look carefully at all the subscripted notations.) SStotal = SSa + SSb + SSwithin SStotal = SSa + SSb + SSab SStotal = SSab + SSwithin SStotal = SSbetw + SSab SStotal = SSa + SSb + SSab + SSwithin In a two-factor ANOVA, an interaction occurs whenever the effect of one factor: is found to be significant. is weaker than the effect of another...
Which of the following plots can help determine whether the variance of the error terms is not constant? (Select all that apply) Select one or more: a. Scatter plot b. Absolute values of residuals or of squared residuals against fitted values. c. Residual plot against the fitted values d. Normal probability plot