A comparison of self-measured and researcher-measured digit ratio (2D:4D).
Ann Hum Biol
; 46(6): 527-530, 2019 Sep.
Article
em En
| MEDLINE
| ID: mdl-31575292
ABSTRACT
The largest investigation of digit ratio (2D4D), the BBC Internet Study, reported on finger lengths measured by participants themselves, yet data validating this technique are scarce and the reliability has been questioned. The current study aimed to calculate reliability and repeatability statistics for self-measured 2D4D and to examine the correlations with researcher-measures. One hundred and seventy-eight undergraduate psychology students attending a practical class self-measured their finger lengths with rulers; a researcher using digital Vernier calipers measured the second and fourth fingers of a random sub-sample (n = 97). Reliability and repeatability of self-measured 2D4D were high, as were correlations with researcher-measurements. In each case, lower values were observed for the right-left difference in 2D4D (D[R-L]). Self-measured L2D4D and M2D4D were significantly higher than the equivalent researcher measurements, suggesting that direct comparison could be problematic. Self-measurements and directly made researcher-measurements of 2D4D are strongly correlated, though self-measured D[R-L] is unreliable.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Antropometria
/
Dedos
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article