The relationship of "intelligence" and reflex conduction rate as found in hypophrenic children.

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Abstract
Two studies have already been made regarding the relationship of reflex time and intelligence. The first of these studies (Travis and Hunter, 1928) reported a high correlation existing between the two. The second study (Travis and Young, 1930) reported no demonstrable correlation between the two. Endeavoring to adduce further information to determine any such relationship a third study-the subject of this paper-was undertaken. In the presentation of data we have arranged the subjects into the following five groups: (1) hypophrenic proper, including all of the cases with the exception of the Mongol series; (2) Mongol, including the special series of subjects of the relatively more uniform physical stigmatization; (3) total hypophrenic, including all of the cases in groups (1) and (2) with ages ranging from 4 to 14 years; (4) hypophrenic and Mongol, including all cases with ages ranging from 7 to 10 years; and (5) superior, including children with a mean I. Q. of 118.56 of ages ranging from 7 to 10 years. The present paper supports the findings of the second report in that it discovers no relationship between intelligence and patellar tendon reflex time. Although there may be a relationship between reflex time and intelligence, since it is so readily conceivable that extremely small differences in the former might represent extremely significant differences in the latter, such a relationship is not demonstrable within the reliability of this present work's technique. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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