The basic model of ANOVA states that a given score is a sum of certain components each due to the effect of a particular identifiable source of variation and it is called 

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.