The effect of the insulin-like growth factor 2 (IGF2) gene polymorphism – a g.292C>T transition in exon 2 on feed uptake and conversion, growth rates, and meat production traits in Polish HolsteinFriesian cattle was investigated. A total of 291 young bulls were genotyped using restriction fragment length polymorphism (RFLP-BsrI). Animals were slaughtered at the age of 11 or 15 months and carcas...

The two most used instruments to assess masculinity (M) and femininity (F) are the Bem Sex Role Inventory (BSRI) and the Personality Attributes Questionnaire (PAQ). Two hypotheses will be tested: a) multidimensionality versus bidimensionality, and b) to what extent the two instruments, elaborated to measure the same constructs, classify subjects in the same way. Participants were 420 high schoo...

This study evaluates issues concerning the potential relationship between androgyny (incorporating both male and female features) and Self-Actualisation (fulfilment of one’s fullest potential) while evaluating their role in feminine and non-feminine occupations. 119 participants (half employed in Traditionally-Feminine occupations and the other half in Non-Feminine jobs) answered the Bem Sex Ro...

Stokes, Childs, and Fuehrer (1981) have recently studied the relationship between the Bern Sex-Role Inventory (BSRI; Bern, 1974) and certain indices of "self disclosure." However, the Stokes et al. study contains a critical methodological flaw; their multiple regression analyses were not performed in the appropriate hierarchical fashion (the main effects were not partialed from the interaction ...

It has been proposed that high prenatal androgens, low prenatal estrogens, or both may be associated with a low (i.e., masculine) second to fourth digit (2D:4D) ratio. The aim of the present study was to examine the association between 2D:4D ratio and gender-role orientation. Participants were 423 male and 312 female university students ranging in age from 18 to 36 years. After filling in the B...

The objective of this study (N = 176) was to evaluate (a) the construct validity of the revised Short Bern Sex-Role Inventory (BSRI) with respect to measures of psychological well-being; (b) the validity of the concept of androgyny conceived as an intrinsically interactive (rather than simply additive) concept, endowed as such with "surplus" meaning; and (c) the validity of the traditional assu...