Does strong correlation among the items in survey questionnaire, provides information on validity and reliability of that instrument?
For example. There are five items under a theme" happiness" for survey questionnaire. The item-total correlations for the five items were: 31, .63, .61, .75, and .66, thus, does it provides some information about reliability and validity of the items.
Hello Jurmi Thinley
1) I suggest you to read about 'Item-total correlation' [https://sciencing.com/calculate-item-total-correlation-coefficients-8726484.html]
2) The correlations must be statistically significant.
3) Are we talking about item-item correlation (first paragraph, you have 10 values?) or item-total correlation (second paragraph)?
4) Which correlation coefficient was used for the calculations?
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Energy