tests the hypothesis that the variances in the two groups are equal. These sections have been edited down considerably and I suggest (especially if you’re confused) that you read this Chapter in its entirety. Andy Field Multiple Regression Using SPSS The following sections have been adapted from Field (2005) Chapter 5.
This book is the best blend that I know of a textbook in statistics and a manual on SPSS.
The t- test in IBM SPSS Statistics An Example: are invisible people mischievous? In my SPSS book (Field, 2013) I imagine a future in which we have some cloaks of invisibility to. C8057: Multiple Regression using SPSS Dr. In this brilliant new edition Andy Field has introduced important new introductory material on statistics that the student will need and was missing at least in the first edition. The file shows how you should have entered the data: the variable Cloak records whether or not a person was given a cloak (cloak = 1) or not (cloak = 0), and Mischief is how many mischievous acts were performed. However, the Durbin-Watson statistic does fall within Field’s recommended boundaries of 1-3, which suggests that errors are reasonably. There is a distinct funnelling indicating heteroscedasticity. Andy Field ¾ Homoscedasticity and Independence of Errors: The scatterplot of ZPRED vs. We measured how many mischievous acts they performed in a week. Discovering Statistics Using SPSS: Chapter 5 Dr. Half of them were given cloaks of invisibility: they were told not to tell anyone else about their cloak and that they could wear it whenever they liked. The community was riddled with hidden cameras so that we could record mischievous acts. I took 24 participants and placed them in an enclosed community.
As a psychologist (with his own slightly mischievous streak) I might be interested in the effect that wearing a cloak of invisibility has on people s tendency for mischief. Andy Field The t-test in IBM spss Statistics An Example: are invisible people mischievous? In my spss book (Field, 2013) I imagine a future in which we have some cloaks of invisibility to test out. Example: barber Search The t-test in IBM SPSS Statistics