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ERIC Number: EJ920798
Record Type: Journal
Publication Date: 2011
Pages: 11
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-0160-2896
A Simple Syllogism-Solving Test: Empirical Findings and Implications for "g" Research
Shikishima, Chizuru; Yamagata, Shinji; Hiraishi, Kai; Sugimoto, Yutaro; Murayama, Kou; Ando, Juko
Intelligence, v39 n2-3 p89-99 Mar-Apr 2011
It has been reported that the ability to solve syllogisms is highly "g"-loaded. In the present study, using a self-administered shortened version of a syllogism-solving test, the "BAROCO Short," we examined whether robust findings generated by previous research regarding IQ scores were also applicable to "BAROCO Short" scores. Five syllogism-solving problems were included in a questionnaire as part of a postal survey conducted by the Keio Twin Research Center. Data were collected from 487 pairs of twins (1021 individuals) who were Japanese junior high or high school students (ages 13-18) and from 536 mothers and 431 fathers. Four findings related to IQ were replicated: 1) The mean level increased gradually during adolescence, stayed unchanged from the 30s to the early 50s, and subsequently declined after the late 50s. 2) The scores for both children and parents were predicted by the socioeconomic status of the family. 3) The genetic effect increased, although the shared environmental effect decreased during progression from adolescence to adulthood. 4) Children's scores were genetically correlated with school achievement. These findings further substantiate the close association between syllogistic reasoning ability and "g."
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Publication Type: Journal Articles; Reports - Research
Education Level: High Schools; Junior High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Japan