Gamma (> 0):
Number of individuals:
Variances / covariance:
at t
1
covariance
covariance
at t
2
Difficulty parameters:
Difficulty 1
item 1
item 2
Detail
Planning Graph
Fix the correlation and estimate the power as a function of a range of values of the variance of the latent trait.
Correlation:
Range of values of the variance:
Minimum
Step
Maximum
Fix the variance and estimate the power as a function of a range of values of the correlation between the two measures.
Variance:
Range of values of the correlation:
Minimum
Step
Maximum
Method of estimation :
GH
MEAN
GH + MEAN
POP + GH
