QUESTIONNAIRE RELIABILITY CHECKING
Questionnaire is a research instrument for gathering information from the respondent through research questions formulated from the objectives of the study.
A questionnaire is not reliable until the internal consistency has been tested by conducting a pilot study of the questionnaire where Cronbach’s Alpha Coefficient Test is implemented.
Cronbach’s Alpha Coefficient Test is a reliability test conducted with SPSS in order to measure the internal consistency.
The following are the ranges of Cronbach’s Alpha Coefficient Test considered as:
Excellent          | 0.93-0.94 |
Strong             | 0.91-0.93 |
Reliable            | 0.84-0.90 |
Robust             | 0.81 |
Fairly High         | 0.76-0.95 |
High              | 0.73-0.95 |
Good              | 0.71-0.91 |
Relatively High    | 0.70-0.77 |
Slightly Low       | 0.68 |
Reasonable       | 0.67-0.87 |
Adequate         | 0.64-0.85 |
Moderate         | 0.61-0.65 |
Satisfactory       | 0.58-0.97 |
Acceptable       | 0.45-0.98 |
Sufficient        | 0.45-.096 |
Not Satisfactory  | 0.40-0.55 |
Low             | 0.11 |
But according to Griethuijsen et al (2014), the threshold or cut-off as an acceptable, sufficient or satisfactory level is normally seen as ≥0.70 or >0.70.
To test the reliability of your research instrument, contact us on whatsapp number: 2348028999115 or click:
or fill out