The present study reports the normative and psychometric information of DOT (form A and B), a brief measure of visuospatial organization relevant to applied research and clinical practice. A sample of 775 university adults participated, from Lima (Peru). The administra-tion of the test was done in groups, with standardized instructions. We found moderately high test-retest reliability; and the covariation with a fluid intelligence test was small but the-oretically consistent. The clinimetrics of the measurement error and the reliable change was adequate (minimum detectable change). The intra-group and between-group (American sample) differences revealed patterns of essentially consistent results, detecting a compara-tively greater effect of practice in the Peruvian sample. The implications of the results are discussed.

El presente estudio reporta la información normativa y psicométrica del DOT (forma A y B), una medida breve de organización perceptual-visual relevante para la investigación aplicada y la práctica clínica. Participó una muestra efectiva de 775 adultos universitarios, de Lima (Perú). La administración del test se hizo en grupo, con instrucciones estandarizadas. Se halló que la confiabilidad test-retest era moderadamente alta; la covariación con una prueba de inteligencia fluida fue pequeña, pero teóricamente consistente. La información clínico-métrica sobre el error de medición y el cambio confiable fue adecuada (mínimo cambio detectable). Las diferencias intra-grupos y entre-grupos (muestra americana) revelaron patrones de resultados esencialmente consistentes, detectándose un efecto de la práctica comparativamente mayor en la muestra peruana. Se discuten las implicac...

The present study reports the normative and psychometric information of DOT (form A and B), a brief measure of visuospatial organization relevant to applied research and clinical practice. A sample of 775 university adults participated, from Lima (Peru). The administra-tion of the test was done in groups, with standardized instructions. We found moderately high test-retest reliability; and the covariation with a fluid intelligence test was small but the-oretically consistent. The clinimetrics of the measurement error and the reliable change was adequate (minimum detectable change). The intra-group and between-group (American sample) differences revealed patterns of essentially consistent results, detecting a compara-tively greater effect of practice in the Peruvian sample. The implications of the results are discussed.