|
|||||
|
|
A DISCRIMINATION INDEX FOR ITEMS IN INSTRUMENTS USING GROUP RESPONSES |
|
| Authors: | JOHN W MENNE ROBERT J TOLSMA |
| Institution: | Iowa State University |
| Abstract: | Item discrimination for instruments used to measure characteristics by means of group responses is stressed. It is argued that a percentage of the total sum of squares which is due to groups can appropriately be used as an index of item discrimination. |
| Keywords: | |