# Blog

Our blog holds a collection of tutorials that don't really fit into any meaningful category but we wanted to write them anyway.

The tutorials below cover all sorts of SPSS related best practices, tips, tricks, bugs and pitfalls. Suggestions for new posts are always appreciated!

# November 2017

##
Statistical Significance – What Does It *Really* Mean?

Statistical significance is the probability of finding a given deviation from the null hypothesis -or a more extreme one- in a sample. Read More

##
New Charts in SPSS 25: How Good Are They *Really*?

SPSS 25 promises great looking charts by default. This tutorial compares the old and new versions for the most important charts in SPSS. Read More

# July 2017

## SPSS ALTER TYPE Reporting Wrong Values?

SPSS version 24 seems to have a bug in the ALTER TYPE command: it reports different values than it actually creates. This tutorial replicates the problem. Read More

## Null Hypothesis – Simple Introduction

A null hypothesis is a precise statement about a population that we try to reject with sample data. Read More

# June 2017

## SPSS – How to fix “Your license will expire in … days”?

If SPSS says that your license will expire in ... days, you can fix the issue by running law.exe and entering your authorization code into the wizard. Read More

# November 2016

## SPSS – Kendall’s Condordance Coefficient W

Get Kendall’s concordance coefficient W for interrater agreement from SPSS in 3 simple steps. With practice data file, screenshots and syntax. Read More

## SPSS Bar Charts Tutorial

How to create great looking bar charts in SPSS with minimal effort? This tutorial quickly walks you through. Read More

# October 2016

## Names and Labels in Output

In output, you can choose whether you'd like to see variable names, labels or both. The same holds for values. This tutorial shows how to modify these settings and the effects of doing so. Read More

## SPSS Main Statistical Functions

SPSS statistical functions are mostly straightforward. This tutorial walks you through the main ones and points out some tips, tricks and pitfalls. Read More

## SPSS Sum – Cautionary Note

In SPSS, "SUM(v1,v2)" is not always equivalent to "v1 + v2". This tutorial explains the difference and shows how to make the right choice here. Read More

## SPSS Basic Operators

SPSS basic operators are mainly used with IF, DO IF and COMPUTE. They work mostly as you'd expect but they do have a couple of surprises in store. No worries, we'll walk you through. Read More

# September 2016

## SPSS – Foreign Currencies Tutorial

Using Euro signs or other foreign currencies in SPSS is pretty easy. This tutorial shows how it's done with some tips for creating pretier output. Read More

## SPSS Main Numeric Functions

This tutorial explains and demonstrates SPSS' main numeric functions. Some tips and tricks will be included along the way. Read More

## SPSS Keywords

Using SPSS keywords, especially TO and ALL greatly speeds up a myriad of typical tasks. This tutorial walks you through SPSS main keywords and points out how they can save time and effort. Read More

# August 2016

## SPSS – Five Handy System Settings

Get better results faster by learning a handful of SPSS system settings. This tutorial demonstrates the 5 most useful ones along with examples. Read More

## Convert Characters to Codepoints and Reversely

SPSS can convert characters into their numeric representations ("codepoints"). This is often handy and sometimes even necessary. This tutorial shows how to use this for solving two common issues. Read More

## SPSS Datasets Tutorial 1 – Basics

SPSS dataset logic is not always logical. However, for working proficiently with datasets, just a handful of basics is sufficient. These are explained in this tutorial. Read More

## Two Digit Year in String – Cautionary Note

When converting a string variable to a date variable, it's unclear to which century two digit years belong. By default, SPSS presumes all two digit years fall between 69 years prior to the current year and 30 years ahead of the current year. If this doesn't hold for your data, you can change this behavior by setting a different `EPOCH`

. Read More

# July 2016

## SPSS Keyboard Shortcuts

Keyboard shortcuts allow you to work with amazing speed. Some SPSS shortkeys may be obvious for MS Windows users but others are less so. A quick overview is presented below. Read More

## SPSS Command Types

Get things done faster in SPSS by understanding its three basic command types: transformations, procedures and other SPSS commands. Read More

## Compute A = B = C

A great way to dichotomize variables is with a single short compute command. This is also the fastest way to create multi variable filters. Read More

## Combine Dichotomous Variables

Two or more dichotomous variables can be combined into a single variable without losing information. The basic trick here is to concatenate their value labels into a string variable and use AUTORECODE. Read More

# June 2016

## SPSS – Open CSV Data File

Opening .csv data in SPSS is easy if you understand some basics. This tutorial (with downloadable .csv file) walks you through the right steps. Read More

## SPSS Numeric Variables Basics

Having a basic understanding of SPSS numeric variables allows you to work fast and with a sense of confidence. This tutorial aims at accomplishing just that by pointing out some essential basics. Read More

## Overview All SPSS Commands

Overview of all SPSS commands in a single table with links, notes and SPSS version in which they were introduced. Downloadable as SPSS data file. Read More

## Combine Categorical Variables

Many easy options have been proposed for combining the values of categorical variables in SPSS. However, the real information is usually in the value labels instead of the values. This tutorial proposes a simple trick for combining categorical variables and automatically applying correct value labels to the result. Read More