Aphasia is the loss of the ability to produce and/or comprehend language, due to injury to brain areas responsible for these functions. Aphasic patients' performance on comprehension tests has ...
Journal of Educational Measurement, Vol. 14, No. 2, Applications of Latent Trait Models (Summer, 1977), pp. 161-179 (19 pages) This paper presents the characteristics, properties and development of ...
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