study hours per week (mean deviation)
score on general ability test (mean deviation)
socio-economic status (mean deviation)
test score - smaller SD
passed test - smaller SD
test score - larger SD
passed test - larger SD
Standardized values of ( x1)
Standardized values of ( x2)
Standardized values of ( x3)
Standardized values of ( y)
Standardized values of ( y1)
Standardized values of ( z)
Standardized values of ( z1)