Specifically, suggestions for how to carry out preliminary procedures, EFA, and CFA are provided with SPSS and LISREL syntax examples. Finally, some critical issues concerning the appropriate (and not-so-appropriate) use of factor analysis are discussed along wi...
Factor Analysis is an extremely complex mathematical procedure and is performed with software. Instructions for Stata can be foundhere. Minitab instructions arehere. For SPSS,FactorAnalysisHowTo. TheKaiser-Meyer-Olkintest checks to see if your data is suitable for FA. ...
In any case: we usually want to exclude outliers from data analysis. So how to do so in SPSS? We'll walk you through 3 methods, using life-choices.sav, partly shown below.In this tutorial, we'll find outliers for these reaction time variables....
For mean centering predictors in SPSS, first add their means to your data. Then simply subtract these from the original variables. With examples & practice data.
A factorial ANOVA is an Analysis of Variance test with more than one independent variable, or “factor“. It can also refer to more than one Level of Independent Variable. For example, an experiment with a treatment group and a control group has one factor (the treatment) but two levels ...
In this "quick start" guide, we show you how to carry out a mixed ANOVA with post hoc tests using SPSS Statistics, as well as the steps you will need to go through to interpret the results from this test. However, before we introduce you to this procedure, you need to understand the...
To Get Rid of the Model Viewer in SPSS: Go to the Edit Menu and choose Options (it’s at the bottom). Choose the Output tab. Under Output Display, there are two Display methods. “Model Viewer” will be chosen by default. Change it to “Pivot Tables and Charts,” Click OK. That’...
The effect of using item parcels on ad hoc goodness-of-fit indexes in confirmatory factor analysis: an example using Sarason’s reactions to tests. Appl Meas Educ. 2003;16(1):75–97. Article Google Scholar Hau KT, Marsh HW. The use of item parcels in structural equation modeling: non-...
Here is a general strategy for figuring out the sample size for your study. In essence, it presupposes that you have your statistical analysis specified to at least the design and the exact statistical test you are going to use. Figure out the size of the signal that is important to you...
We'll do just that in a minute. Although safe, I still think this method is too much work, especially for multiple variables. Let's speed things up by using some handy syntax.SPSS - String to Numeric with SyntaxThe fastest way to convert string variables into numeric ones is with the ...