Construct validity and internal consistency reliability of the Loewenstein occupational therapy cognitive assessment (LOTCA)

Table 4 LOTCA Subscales (Requiring Cultural Adaptation) Factor Loadings, Eigenvalues, Communalities, Percent of Explained Variance and Cronbach’s Alpha (N = 442)

Domain/Measure	Loading	Initial Eigenvalue	Communalities	of Variance explained	Cronbach’s α
Visual Perception
3.Object identification	.478	1.58	.229	39.57	.47
4. Shape identification	.617		.381
5.Overlaping figures	.726		.526
6. Object constancy	.669		.447
Spatial Perception
7. Directions on Ca Body	.726	1.75	.527	58.34	.63
8. Spatial relations	.820		.673
9. Spatial relations on pictures	.742		.551
Motor Praxis
10.Motor imitation	.640	1.54	.410	51.60	.47
11. Utilization of objects	.767		.589
12. Symbolic actions	.741		.550
Thinking Operation		2.645		44.09	.74
14.Categorization	.693		.480
15. ROC unstructured	.772		.598
14. ROC structured	.736		.542
15. Pictorial sequence A	.638		.400
16. Geometric sequence	.600		.360
17. Logic questions	.510		.260

Note. LOTCA Loewenstein Occupational Therapy Cognitive Assessment (Itzkovitch et al. 2000). Boldface type indicates primary loading for each measure
Eigenvalue = pre-rotation column sums of squared loadings
Communalities = calculated per item, based on a one-factor solution
Cronbach’s α reported for primary loadings (boldface type)

ISSN: 1471-244X