PSY Exam 4 study

Conduct post hoc tests

Following a significant one-way between-subjects ANOVA in which k>2, what is the next appropriate step?

The number of factors in the design

For an analysis of variance, the term "one-way" refers to

A related (dependent) samples t-test A one-way within-subjects ANOVA

A researcher measures anxiety levels among participants in the presence of fearful stimulus and again in the absence of a fearful stimulus. If the same participants are observed in each group, then what type of statistical analysis is appropriate for this study?

A two-independent samples t-test A one-way between subjects ANOVA

A researcher measures differences in recall between teenagers and adults following a romantic movie clip. If different participants were in each group, then what type of statistical analysis is appropriate for this study?

A one way between- subjects ANOVA

A researcher randomly assigned 30 participants into three groups of 10 participants each that will engage in low, moderate, or intense levels of exercise. The total calories consumed by participants following the exercise are then recorded. What type of statistical analysis is appropriate for this study?

A one-way within-subjects ANOVA

A researcher records depression scores for 12 patients in each of the four seasons. If depression scores for the same participants are recorded in each season, then what type of statistical analysis is most appropriate for this study?

Different participants are observed one time in each of two or more groups for one factor

Computing a one-way between-subjects ANOVA is appropriate when

The same participants are observed across groups

Computing a one-way within subjects ANOVA is appropriate when

Within-groups variability

The source of variability associated with error variance in the one-way between-subjects ANOVA is called

Error variation

Which source of variation is computed when using a one-way within-subjects ANOVA, but not when using a one-way between-subjects ANOVA?