Statistical Methods for Psychology

We can now calculate the intraclass correlation as Thus our measure of reliability is .70, which is probably not as good as we w ...

Matched Samples and Related Problems In discussing repeated-measures designs, we have spoken in terms of repeated measure- ments ...

restricted maximum likelihood (REML)in place of the least squares approaches that we have focused on up to now and will focus on ...

One difference between data files for mixed models and others is that we use what is often called a “long form.” Instead of putt ...

I am only presenting the most important parts of the printout, but you can see the rest by running the analysis yourself. (The d ...

(some lines are higher than others) and it is this variance that we have here. For most of us that variance is not particularly ...

of correlations that decrease regularly the more removed the observations are from each other. That sounds like a logical expect ...

true, and we still want to know which model is better. One way of doing that is to compare the sections labeled “Information Cri ...

506 Chapter 14 Repeated-Measures Designs Exercises 14.1 It is at least part of the folklore that repeated experience with any st ...

Exercises 507 scale of self-sufficiency. The ratings were done in a baseline session and at the end of training. The data follow ...

508 Chapter 14 Repeated-Measures Designs Addition Subtraction Multiplication Non-calculator owners 10 7 6 76 5 65 5 97 8 96 9 a. ...

Exercises 509 Pre Post Home Work Home Work Taper 7664 5452 8774 8865 6553 Immediate 8776 5554 7665 8765 7654 Aversion 9854 4432 ...

510 Chapter 14 Repeated-Measures Designs 14.18The SPSS printout in Exhibit 14.2 was obtained by treating the data in Exercise 14 ...

Exercises 511 were measured at Pretreatment, Posttreatment, and a 3.5 month Follow-up. The data below closely approximate the da ...

512 Chapter 14 Repeated-Measures Designs 14.24 In the data file Stress.dat, available on the Web site, are data on the stress le ...

Exercises 513 c. How does the answer to part (b) relate to the answer to part (a)? d. Plot scatterplots of the relationship betw ...

This page intentionally left blank ...

CHAPTER 15 Multiple Regression CHAPTER 15 Multiple Regression Objectives To show how we can predict a criterion variable on the ...

IN CHAPTER 9 WE CONSIDEREDthe situation in which we have one criterion variable (Y) and one predictor variable (X) and wish to p ...

number of predictors increases, but we are not concerned with these calculations here. In- stead, we will begin with an example ...