Behavioral genetic study of time perspectives
Description
The dataset contains the data collected within the GALTON study, which was a part of a research program entitled "In search for time perspective origins: Genetic and environmental bases of subjective attitudes towards time" funded by National Science Centre, Poland (2014/13/D/HS6/02951), awarded to Maciej Stolarski. Participants were 411 Polish same-sex twin pairs, reared together. The participants completed a set of measures including a 64-item version of the Zimbardo Time Perspective Inventory (ZTPI), the 50 item set of International Personality Item Pool Big Five Factor Markers (IPIP-BFM-50) questionnaire (Goldberg, 1992) in the Polish adaptation by Strus et al. (2017). Zygosity was diagnosed by the Polish version of the Questionnaire of Twins Physical Resemblance (QTPR; Oniszczenko & Rogucka, 1996). The predictive accuracy of the scale reaches 93.9% (96.2% for monozygotic and 90% for dizygotic pairs). In the case of a discrepancy between QTPR-based and self-reported zygosity, couples were excluded from the analyses. The ultimate sample comprised 393 same-sex twin pairs, reared together. Among them 135 were classified as monozygotic (MZ) and 258 as dizygotic (DZ) twins. MZ twins (88 females, 47 males) were aged between 15 and 48 years (M=24, SD=7.1) and DZ (189 females and 69 males) were between 15 and 57 years (M=21.9, SD=5.6).