### Tips – difference between factor and cluster analysis

Last week someone asked me about the difference between factor- and cluster analysis? Here is my answer, that is normally the case: Factor analysis is a help to group variables. Cluster analysis [...]

### Tips – Use pivot for cleaner tables

Hi, sometimes the tables get to big in the output window to get a good overview. Then it’s good to pivot the table into layers. Pivoting is the same as changing place on items in a table. [...]

### Statistics – Spearman correlation

Hi, Pearson or Spearman’s correlation? The measurement level or normal distribution will lead you to the most correct correlation method. So if you have 2 scale variable that are both [...]

### Statistics – report p-values in correlation or not?

My teacher in statistics told us following: “don’t report the p-values from the correlations, stay with the correlation coefficient only”. First I didn’t understand what [...]

### Statistics – Add missing methods by extension

If you miss a statistical method or functions in the SPSS Statistics menus, you might find these in the extension hub. You could say that extension is the same as application (app), and they are [...]

### SPSS Tips & Tricks #8 – delete missing

Hi, I got a question from a SPSS user who didn’t want to have the missing values within the Tree-analysis, (she use SPSS Decision Trees). If you don’t want cases with missing value in [...]

### Statistics – Correlation

Hi, last week I talked about “Cronbach’s Alpha” that is based on Pearson’s correlation so I will show you the correlation command and the result for the same variables [...]

### SPSS Tips & Tricks #6 – Compute index

Hi, today I will show you how you create an index, something that I talked about but not showed in the webinar about “measure the unmeasureable”. Background: Example of an common [...]

### Statistics – Cronbach’s alpha

Hi, after my webinar in beginning of July about factor analysis and creating index variables of variables that is correlated to each other, I think it’s worth telling you about a validation [...]

### Statistics – Multiple Linear regression

Hi, here is one long blog post for this week, because of a question I got. The user has tried to find any “step-by-step” instruction how to do multiple linear regression, but [...]