Om cronbachs alpha te berekenen met spss klik je in. Download scientific diagram descriptive statistics for the cronbach alpha. To test the internal consistency, you can run the cronbachs alpha test using the reliability command in spss, as follows. Descriptive statistics for the cronbach alpha reliability test. Try ibm spss statistics subscription make it easier to perform powerful statistical analysis start a free trial. Cronbachs alpha is the most common measure of internal consistency reliability. Cara uji reliabilitas spss alpha cronbachs data kuesioner. Calculation of cronbach s alpha in cell e with the calculated value of b12, e12, and b in openoffice calc spreadsheet. There is a weblink in the article where you can download spsssas macro, however, the link has changed to. I know that cronbachs alpha test is for likert scale questions. Cronbachs alpha samenhang tussen enquetevragen meten met.
Cara melakukan uji reliabilitas alpha cronbach s dengan spss setelah sebelumnya kita telah melakukan uji validitas product momen dengan spss, selanjutnya yang harus kita lakukan agar angket yang digunakan dalam penelitian ini benarbenar dapat dipercaya sebagai alat pengumpul data, maka angket tersebut perlu di uji reliabilitas atau tingkat kepercayaannya. As the average interitem correlation increases, cronbach s alpha increases as well holding the number of items constant. Conduct and interpret an internal consistency reliability analysis through cronbach s alpha, the corrected itemtotal correlations and the interitem correlation matrix. The kr20 is a special case of cronbachs alpha in which the items are. Can spss calculate the kuderrichardson 20 kr20 and kr21. Cronbachs alpha in spss statistics procedure, output and. Kuderrichardson reliability coefficients kr20 and kr21 ibm. Calculating and interpreting cronbachs alpha using rosenberg. How do i calculate cronbachs alpha in a questionnaire with 28 questions each 7point. Cronbachs alpha in this tutorial you will learn how to produce a simple and commonly used measure of reliability. Lets work through an example of how to compute cronbach s alpha using spss, and how to check the dimensionality of the scale using factor analysis. Cronbachs alpha in spss statistics procedure, output. In spss, how do i compute cronbachs alpha statistic to test reliability.
Splithalf adjusted b kuderrichardson formulas 20 and. I am looking a free downloadable spss software, any assistance. Cronbach s alpha is a statistical reliability test that analyzes the intercorrelations among the questions in a survey. For this purpose, the data obtained by survey and interview method with experts working in the field and kovada lake national park residents were analyzed with using spss 20 statistical package. It is most commonly used when you have multiple likert questions in a surveyquestionnaire that form a scale and you wish to determine if the scale is reliable. Conduct and interpret an internal consistency reliability analysis through cronbachs alpha. I am looking for a link to download free spss software. It was first named as alpha by cronbach 1951, although an earlier version is the kuderrichardson formula 20 often shortened to kr 20, which is the equivalent for dichotomous items, and guttman 1945 developed the same quantity under the name lambda2. Cronbachs alpha is most commonly used when you want to assess the internal consistency of a questionnaire or survey that is made up of multiple likerttype scales and items. Cronbach alpha is a reliability test conducted within spss in order to measure the internal consistency i.