Correction factor for the PPVT as a reading test.
D000367:Age Factors; D001037:Aphasia / Q000150:complications; D002648:Child; D006311:Hearing Disorders / Q000150:complications; D006801:Humans; D007859:Learning Disabilities / Q000175:diagnosis*; D011581:Psychological Tests; D011932:Reading; D012044:Regression Analysis; D014888:Wechsler Scales