The aim of present study was to see the frequency of crime among individuals with drug addiction with respect to birth order. Data of 332 (73 first born; 188 middle born; and 71 last born) indoor male patients was taken from a tertiary care drug addiction treatment centre and rehabilitation centre Pakistan. The age range of the participants was from 15 to 57 years (M = 29.5, SD = 2.4). Findings...

The present study investigated the reasons for inconsistent findings concerning birth-order effects and extraversion. According to Sulloway (1995, 1996), one would expect first-born siblings to rate higher on one of the facets, dominance, and later-born siblings to rate higher on the other facet, sociability. In a within-family design, 96 undergraduate and graduate students rated themselves and...

The association between infections occurring in the first 2 years of life and development of eczema was investigated in 1,782 control children from a national population-based case-control study in the United Kingdom conducted over the period 1991–1996. Dates of eczema and infectious diagnoses were ascertained from contemporaneously collected primary care records. Children diagnosed with eczema...

In the present work we studied the birth order in progenies of lranian survivors of Iraqi chemical attacks during a period from 1984 to 1989. Then we compared the results with the birth order of the control group. Despite a slight difference between the birth order in the two groups of progenies, this was not statistically significant. This does not mean, however, that there are no genetic ...