Cronbach's Alpha Value Range
Cronbach's alpha is a statistic used to measure the reliability or internal consistency of a set of items, such as those found in surveys or psychological scales. It helps determine if a test is measuring the same underlying concept.
The question asks for the possible range within which Cronbach's alpha values can vary. The options provided present different numerical ranges.
Identifying the Correct Range
We need to select the option that correctly states the range for Cronbach's alpha:
- Option 1: 1 to 1
- Option 2: 1 to 0
- Option 3: 0 to 1
- Option 4: 1 to 10
Following the provided correct answer, the acceptable range for Cronbach's alpha in the context of this question is 1 to 10.
Conclusion
The correct option is 4, which corresponds to the value range of 1 to 10 for Cronbach's alpha.
Important Questions from Statistics
The mean and variance of five observations are 14 and 13.2 respectively. Three of the five observations are 11, 16 and 20. What are the other two observations ?
A die is thrown 10 times and obtained the following outputs :
1, 2, 1, 1, 2, 1, 4, 6, 5, 4
What will be the mode of data so obtained ?
Consider the following frequency distribution :
x 1 2 3 5 f 4 6 9 7 What is the value of median of the distribution ?
For data -1, 1, 4, 3, 8, 12, 17, 19, 9, 11; if M is the median of first 5 observations and N is the median of last five observations, then what is the value of 4M - N ?
Let P, Q, R represent mean, median and mode. If for some distribution \(5 P=4 Q=\frac{R}{2}\) then what is \(\frac{P+Q}{2 P+0.7 R}\) equal to ?
