Introduction
Cronbach's alpha is the most common measure of internal consistency ('reliability'). It is most commonly used when you have multiple Likert questions in a survey/questionnaire that form a scale and you wish to determine if the scale is reliable. If you are concerned with inter-rater reliability, we also have a guide on using Cohen's (κ) kappa that you might find useful.
IBM SPSS Statistics 23 Installation Instructions. This offer is distributed as a zip file. We suggest using WinZip to extract these files. IBM SPSS Statistics for Windows, Version 23: A Basic Tutorial. This book is intended for those who want to learn the basics of SPSS. It can be used as a. SPSS is a Shareware software in the category Desktop developed by SPSS Inc. It was checked for updates 188 times by the users of our client application UpdateStar during the last month. The latest version of SPSS is 23.0, released on. It was initially added to our database on.
SPSS Statistics
3 IBM SPSS Statistics 23 Part 3: Regression Analysis. Figure 1 – Scatter/Dot Selected on the Graphs Menu 3. Download wineskin for mac mojave. In the Scatter/Dot dialog box, make sure that the Simple Scatter option is selected, and then click the Define button (see Figure 2). NOTE: The Simple Scatter plot is used to estimate the relationship between two variables.
Example
A researcher has devised a nine-question questionnaire to measure how safe people feel at work at an industrial complex. Each question was a 5-point Likert item from 'strongly disagree' to 'strongly agree'. In order to understand whether the questions in this questionnaire all reliably measure the same latent variable (feeling of safety) (so a Likert scale could be constructed), a Cronbach's alpha was run on a sample size of 15 workers.
SPSS Statistics
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Setup in SPSS Statistics
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In SPSS Statistics, the nine questions have been labelled Qu1 through to Qu9. To know how to correctly enter your data into SPSS Statistics in order to run a Cronbach's alpha test, see our guide: Entering Data into SPSS Statistics. Alternately, you can learn about our enhanced data setup content on our Features: Data Setup page.