Exam 12: Two-Way Analysis of Variance: Between-Subjects Factorial Design

In a study with three groups and 13 participants in each group,the sum of squares for the within-groups source of variation is 18.What is the value for the mean square within-groups in this study?

A researcher notes that the variability attributed to difference between group means is quite large.Which source of variation is the researcher referring to?

Which of the following post hoc tests is associated with the least power to detect an effect?

Which of the following post hoc tests is associated with the greatest power to detect an effect?

Which of the following is not a post hoc test for a one-way between-subjects ANOVA?

A researcher randomly assigned 32 children to observe a short clip depicting either their favorite superhero,a parent,a teacher,or no person at all (n = 8 per group).If = 30 and = 104,then what was the decision at a .05 level of significance for a one-way between-subjects ANOVA?

A "one-way" ANOVA is associated with one degree of freedom.

ANOVA stands for,

When the variability attributed to between-groups is equal to the variability attributed to error,then the value of the test statistic for a one-way between-subjects ANOVA is,

The term "between-subjects" refers to

Post hoc tests are computed

A researcher measures differences in romantic feelings among adolescent and adult males.If different participants were in each group,then what type of statistical design is appropriate for this study?

The numerator of the test statistic for a one-way between-subjects ANOVA is the mean variability associated with error.

An analysis of variance is a statistical procedure used to test hypotheses for one or more factors concerning the variance among two or more group means,where the variance in one or more populations is unknown.

An ANOVA is used when samples are selected from two or more populations and when two or more samples are selected from the same population.

There are two sources of variation in a one-way between-subjects ANOVA: one attributed to differences between groups and one attributed to error.

A "one-way" between-subjects ANOVA is conducted when data are recorded in one group.

A researcher conducts a study in which k = 5 and N = 80.What are the degrees of freedom between-groups for the one-way between-subjects ANOVA?

A one-way between-subjects ANOVA is conducted to test for mean differences between the levels of two or more factors.

To compute a mean square,we divide the sum of squares by degree of freedom for a given source of variation.