T Tests in SPSS
SPSS T Test Tutorials
SPSS One Sample T-Test
SPSS one-sample t-test is used for testing whether the mean of one metric variable is equal to some hypothesized population value. Read More
SPSS Independent Samples T Test
SPSS independent samples t test is a procedure for testing whether the means from two groups of cases on one metric variable are equal. The two groups are usually identified by a dichotomous variable. Read More
SPSS Paired Samples T Test
SPSS paired samples t-test is a procedure for testing whether the means of two metric variables are equal. Both variables have been measured on the same cases. Read More
T Test Background Tutorials
Standard Deviation – What Is It?
The standard deviation is a number that indicates how far a set of numbers lie apart. This tutorial explains what a standard deviation is in normal language along with examples. Read More
Z-Scores – What and Why?
Z-scores are linearly transformed data values having a mean of zero and a standard deviation of 1. Z-scores may or may not be normally distributed. Read More