Judgment of Line Orientation: an examination of eight short forms.
The Judgment of Line Orientation (JLO) test is a commonly used measure of visuospatial perception. Because of its length, several short forms have appeared in the literature. We examined the internal consistency of the JLO and eight of its published short forms among 128 undergraduates, 203 healthy older adults, and 55 chronic kidney disease patients. The full test demonstrated good reliability for traditional neuropsychological assessment, but the majority of short forms were adequate only for screening purposes, where greater measurement error is typically permitted in exchange for brevity. In contrast, a recently developed short form based upon item response theory demonstrated promise as a stand-alone measure.
Department of Psychology, University of Maryland, Baltimore County, Baltimore, MD 21250, USA.
Robert J
RJ
Spencer
Carrington R
CR
Wendell
Paul P
PP
Giggey
Stephen L
SL
Seliger
Leslie I
LI
Katzel
Shari R
SR
Waldstein
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D003072:Cognition Disorders / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D007600:Judgment / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D009949:Orientation / Q000502:physiology*; D011594:Psychometrics; D051436:Renal Insufficiency, Chronic / Q000150:complications / Q000523:psychology; D015203:Reproducibility of Results; D014495:Universities; D055815:Young Adult