Exam 11: Correlational Designs

You have a situation in which three variables-X, Y, and Z-are correlated with one another. You find that the partial correlation of X with Y controlling for Z is zero. This finding means that

Which of the following statements about multiple regression analysis is/are TRUE?

Imagine that you have measured self-esteem and anxiety in both a Japanese and a British sample of respondents. You plan to examine the correlation between these two measures. What steps should you take to evaluate whether there are subgroup differences on these measures? Why would this be important?

What is a multiple correlational coefficient and what information does it provide to researchers?

In the bivariate regression equation Y = a + bX, the value a is called the

Under what circumstances is conducting a multiple regression analysis a better option than conducting an analysis of variance? Why?

What is a multiway frequency analysis? For what type of data would this analysis be appropriate?

The square of a correlation coefficient (r²) represents

You calculate the correlation between work load and job satisfaction in a group of employees in an organization you are studying. You find that as work load increases satisfaction decreases. Your finding represents a ________ relationship between job experience and productivity.

An outlier is a(n)

You compute the following bivariate regression equation: Y = 3.11 + 1.25X. The 1.25 represents the

What is log linear analysis?

In multiple regression analysis, the regression coefficient

Why is it important to plot the scores on the variables you wish to correlate prior to conducting your statistical analysis?

Multiple regression analysis is generally preferred over analysis of variance (ANOVA) when

You conduct a study in which college students, taking the role of jurors, read a detailed description of an assault case in which the evidence against the defendant is somewhat ambiguous and so could support either a guilty or not-guilty verdict. The independent variables are participant sex (male or female) and participant race (Black, Hispanic, or White). The dependent variable is whether participants vote guilty or not guilty. The most appropriate technique for analyzing your data is

You compute the following bivariate regression equation: Y = 3.11 + 1.25X. The 3.11 represents the

Define attenuation and explain how it affects the observed correlation relative to the true score correlation.

The slope component of a bivariate regression equation represents

What is a logit analysis? For what type of data would this analysis be appropriate?