The LOTCA battery is used to assess adult persons with neurological deficits and mental health. It includes 25 subtests in 6 cognitive areas, orientation, visual and spatial perception, praxis, visuomotor organization and thinking operations. Scoring is on an ordinal scale of 1-4 (1-severe deficit and 4-average performance), except for orientation scores that range from 1-8, and categorization where the range is 1-5. Reliability, validity and standards of performance, for the LOTCA, are available for brain injured adult patients, patients following stroke, schizophrenic patients, healthy adults and healthy children (see references). The instrument is available in English, Spanish and Hebrew.

Loewenstein Occupational Therapy Cognitive Assessment-Geriatric (LOTCA-G) 

(Itzkovich, Elazar, & Katz, 1996) 

The LOTCA-G is a version of the LOTCA battery for adults. The main changes relate to sensory motor deterioration in normal aging, therefore, items were enlarged, details were reduced, subtests were shorten so that the total time was reduced and memory subtests were added. The LOTCA-G includes 23 subtests in 7 cognitive areas, orientation, visual and spatial perception, praxis, visuomotor organization, thinking operations and memory. Scoring is on an ordinal scale of 1-4 (1-severe deficit and 4-average performance), except for orientation were scores range from 1-8. The test is a performance test with minimal verbal requirement except for orientation. Memory includes delayed recall and recognition. The test takes about 30-45 minutes to administer and total time is recorded. Construct validity was determined for the LOTCA-G comparing healthy elderly and patients following stroke as well as patients with dementia showing significant differences between the groups. Furthermore, taking into account also age related decline in cognitive function the battery was found to differentiate between healthy elderly and adults and those following stroke (Katz, Elazar, & Itzkovich, 1995; Bar Haim Erez & Katz, 2003). The instrument is available in English and Hebrew.