Hereditary Differences in Trainability of Purebred Dogs

The Wolpe-Lazarus Fear Survey Schedule was administered to a sample of 553 girls and 559 boys ranging in age between 12 and 18 years, and their responses were factor analyzed. The most prominent factors to emerge were those loading on items in the Social stimuli and Tissue damage categories. An analysis of frequency of response to schedule items indicated that this prominence was not a problem of item distribution in the schedule. The findings are discussed in relation to theoretical accounts of fears, and the author concludes that no one particular theoretical position can adequately account for the major findings.