Evening Fa22

If I want to know whether students in evening classes score higher, on average, ontests than day classes, I would use: 

Large sample variances decrease power to reject H₀.

To determine whether students’ performance on Test 2 was lower, on average, than their prior performance on Test 1, we would use

A researcher hypothesizes that parents of 4-year-old children rate their children as more hyperactive than their teachers rate these same children.  To test this hypothesis, the researcher should use a

To compare the average age of psychology majors with business majors, you would use

The variability of means across three different treatments in the same experiment is called

In Analysis of Variance (ANOVA), the term ‘factor’ refers to the

In Oneway ANOVA, k is

In a Oneway ANOVA, the variance of the dependent variable is partitioned into between group variance and within group variance.

Rachel, Serena, Michiko, and Olga want to compare happiness ratings of residents of 6 cities which have study abroad programs for students interested in fashion. They found a sample of 600 students who had studied in these cities and provided ratings of happiness.  What analysis should they use to see if there are any significant differences in happiness ratings?

What are the df_between and df_within for the study of the differences in happiness ratings among 6 cities with 600 student participants (100 from each city)?

The symbol for the percent of the variance in the dependent variable attributable to the independent variable is

If a significant result for a hypothesis test is obtained, then you can assume that the effect size was large.

A homogeneity of variance test, such as Levene’s test, is used to test the assumption for independent samples tests, such as Oneway ANOVA, that