The origins of the current CHC definitions: Where is the CHC definition birth certificate?

The historical development of the CHC model of intelligence has been documented byMcGrew (2005) andSchneider and McGrew (2012) and summarized by Kaufman and colleagues (Kaufman, 2009;Kaufman, Raiford& Coalson, 2016).  An unexplained crucial, yet missing piece of the CHC story, is the origin of the original CHC broad and narrow ability definitions.  The CHC ability definition birth certificate, until now, has not been located.  To fend off possible CHC“birther” controversies, I will now set the record straight regarding the heritage of the past and current CHC definitions.Given the involvement of bothJohn Horn andJack Carroll in revisions of the WJ-R and WJ III, which was the impetus for the combined CHC theory, it is not surprising that the relations between the “official” CHC ability definitions and the WJ tests were “reciprocal in nature, with changes in one driving changes in the other” (Kaufman et al., 2016, p. 253).  Furthermore, “the WJ IV represents the first revision in which none of the original CHC theorists was alive at the time of publication, producing and imbalance in this reciprocal relationship, with the WJ IV manuals now serving as the official source for the latest CHC theory and model of cognitive abilities ( J. Schneider, personal communication, March 15, 2015)” (Kaufman et al., 2016; p. 253).  Kaufman et al. noted that with the development of subsequent non-WJ CHC assessment and interpretation frameworks (e.g.,...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - Category: Neuroscience Tags: Cattell-Horn-Carroll CHC CHC defs CHC theory definitions Jack Carroll John Carroll John Horn Source Type: blogs