What is the percentage of reliability in the results of research that depends on the collection of data on the questionnaire?

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Mahfuz Judeh

The measurement scaling reliability for data collected through questionnaires should be more than .60 according to Uma Sekaran.

Ufuk Turen

Hi,

According to Nunnally (1978) Cronbach's Alpha should be bigger than 0.7. Please see the paper attached below.

Hasan Ali Al-Zu'bi

Dear Ufuk

Thank you for your answer

Umesh Sharma

Agreed with Ufuk. Cronbach's Alpha should be greater than 0.7.