摘要:The present study was aimed to investigate the reasons for inconsistent findings concerning birth-order effects on adjustment levels among alone born and first born childeren. A total of 100 under graduate students were taken as study sample from Dev Sanskriti Vishwavidyalaya, Haridwar, of which 50 were alone born and 50 were first born constituting two groups. Bell adjustment inventory prepared by Raj Kumar Ojha was administered to measure their adjustment levels consisting the dimensions of home, social, emotional and health. The mean scores of alone born and first born in respective dimensions were worked out. Student t-test was applied to study the statistical significant difference among the mean scores of both the groups. Results indicated that there exists a significantly higher adjustment levels in the dimensions of home, social, emotional and health in alone born in comparison to first born children. However the first born children were having higher health adjustment scores. On the basis of these findings it may be concluded that first born were highly adjusted when compared to alone born and proves it that birth order has definite effects on adjustment capacities of the children.