Reliability test

Here we introduce the purposes of a reliability test. Reliability indicates how well the scale produces consistent results without bias. Reliability is used to check the scale stability and internal consistency. Types of reliability tests and when these tests are needed are discussed. The results of the reliability test need to be reported both after the pilot test and after the completed data collection. Guidance on how to perform a reliability test in SPSS and interpretation of the value of Cronbach’s alpha include the Cronbach’s alpha if the item is deleted. There are instructions on the negative statements in the scale before running a reliability test. Here we interpret the reliability test outputs, decide on the items to be deleted or retained, and lastly, report a reliability test in APA format with a sample write-up.