When 'F' is significant further testing is done using ............... test.

When both the independent and dependent variables are .............. (or) .................... scale measures, product moment correlation can be used to test hypothesis.

The most important contemporary development in psychological testing is 

The co-efficient of equivalence can be computed as an index of

.................. indicates the proportion of the examinees that marked the item correctly.

The value of the discrimination index can range from