ERIC Number: ED189158
Record Type: Non-Journal
Publication Date: 1980-Apr
Reference Count: N/A
The Predictive and Concurrent Validity of the Elizur Test of Psycho-Organicity.
Culbertson, William C.; Docherty, Edward M., Jr.
Learning disabled, emotionally disturbed, and unclassified male students originally tested with the Elizur Test of Psycho-Organicity (ETPO) when they were 6 to 11 years of age (time 1), were reassessed four years later (time 2) with the same instrument. Examinees were required to duplicate geometric and colored block designs, and to memorize five digit numbers. As predicted, the total ETPO score at time 1 was found to significantly differentiate and the three classification groups at time 2. Further, a significant correlation ratio of .49 was obtained between ETPO total score at time 1 and classification status at time 2. Also as predicted, the total ETPO score at time 2 significantly differentiated the three classification groups, and a significant correlation ratio of .55 was obtained, indicating that ETPO performance at time 2 was related to classification status at time 2. Classification equations were derived from multiple discriminant analyses. When cross-validated, these analyses reveal an overall hit rate of 61% for the predictive study, and 70.7% for the concurrent study for a combined emotionally disturbed and learning disabled group. (Author/CP)
Publication Type: Speeches/Meeting Papers; Reports - Research
Education Level: N/A
Authoring Institution: N/A