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

Table 3 LOTCA Subscales (Not 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
Orientation
1.Orientation to Place	.910	1.64	.820	82.08	.76
2. Orientation to time	.910		.820
Visuo-Motor Organization
13.Copying geometric forms	.712	3.06	.507	43.81	.78
14. Two dimensional model	.476		.226
15. Pegboard construction	.696		.485
16. Colored block design	.637		.405
17. Plain block design	.712		.507
18. Reproduction of a puzzle	.717		.514
19. Drawing a clock	.649		.422

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

ISSN: 1471-244X