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If you need to include a citation, versions that were produced by SPSS Inc. Before the IBM acquisition (Versions 18 and earlier) would be given an origin or publisher of SPSS Inc. Versions that were released after the acquisition would be given an origin or publisher of IBM Corp. Phan mem Addeddate 2021-03-12 14:26:05 Identifier ibm-spss-statistics-23-version-64bit Scanner Internet Archive HTML5 Uploader 1.6.4. Plus-circle Add Review. Mar 12, 2021 SPSS. Phan mem Addeddate 2021-03-12 14:26:05 Identifier ibm-spss-statistics-23-version-64bit Scanner Internet Archive HTML5 Uploader 1.6.4. Plus-circle Add Review. Untuk Mendapatkan Software IBM SPSS Versi 23, Download SPSS Statistics 23 tersebut secara langsung di situs resmi IBM. Semoga anda dapat menemukan dan memanfaatkan link download SPSS 23 tersebut. Statistikian sengaja tidak menempatkan link download, sebab demi menjaga kekayaan intelektual dan menghindari pembajakan. Fungsi Aplikasi IBM SPSS 23: Offers a broad range of statistical and analytical capabilities that organizations require. Addresses the entire analytical process from planning and data preparation to analysis, reporting and deployment. Provides tailored functionality and custom interfaces for different skill levels.

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.

SPSS Statistics

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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

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.