a)We can use Kuder-Richardson formula 20 to calculate split-half reliability.
rKR20=(kk−1)(1−∑pqσ2r_{KR20}=(\frac{k}{k-1})(1-\frac{\sum pq}{\sigma^2}rKR20=(k−1k)(1−σ2∑pq
b) Formula for calculating Reliability coefficient;
RC=(NN−1)×(TotalVariance−SumofVariance)TotalVarianceRC=(\frac{N}{N-1})\times\frac{ (Total Variance-Sum of Variance)}{Total Variance}RC=(N−1N)×TotalVariance(TotalVariance−SumofVariance)
Need a fast expert's response?
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!
Comments
Leave a comment