This paper examines the effect of birth order on educational attainment in the United States and the underlying mechanism producing these effects. Using a family fixed effects model, we find negative birth order effects on educational outcomes. However, this effect varies depending on the household's income, being the strongest for households with…

It is a very important step to consider the variables that affect sibling relationships together. This study aimed to determine the effects of the variables Birth Order (First, Middle, and Last), Gender (Female, Male), and Number of Siblings ("two or three" and "four or more"), which have been suggested to affect sibling…

The study examined the effect of birth order differences on adjustment among first year undergraduate students in one selected university in Kenya. A cross-sectional survey research design was adopted. The sample size comprised 213 first year students selected using both stratified and simple random sampling techniques. The adjustment…

The potential influences on children's sharing decision caused by birth order and sibling age gap were examined. A third-party resource allocation task was adopted to examine five- to six-year-old children's sharing decision when they expected a protagonist to allocate resources between two recipients with different social relationships. Children…

No previous study on the interrelation between parental birth order and offspring educational attainment has analysed the first stage of tracking into schools, which in many countries is highly selective of persons who aim for university studies. We do so and examine how parental birth order is associated with attainment of general upper secondary…

Adult siblings without disabilities play important roles in relation to their brothers and sisters with intellectual disabilities. This study reviewed knowledge about adult sibling relationships in Chinese societies, where one sibling has intellectual disability. Five English and two Chinese databases were searched for publications published up to…

Humor is a central feature of close and intimate relationships in childhood. However, fundamental questions regarding the relationship between humor production, pretend play, and social understanding have been overlooked. In a selected subsample from a prospective longitudinal study of first-born children (N = 110, M age = 6.91 years, 46.4%…

This study examined the longitudinal associations between perception of sibling relationship quality (i.e., sibling warmth and conflict) and sibling influence (i.e., sibling modeling and differentiation), as well as the potential moderating role of birth order among Chinese adolescents. Participants were 150 adolescents (M[subscript age] = 12.84…

First-born Latina daughters of immigrant parents are raised take on responsibilities within their household and are also expected to obtain a good education. These roles can often conflict with each other due to their different demands. This research aimed to understand the experiences of first-born Latina daughters of immigrant parents who were…

Despite growing interest in the potential influence of grandparents on grandchild status attainment, research has not addressed whether the ordinal position or number of grandchildren affects outcomes. We apply sibling- and cousin-fixed effects analyses to Swedish population data to examine how cousin order and cousin group size influence grade…

This article extends our understanding of early school leaving in developed countries by analysing whether the risk of dropping out depends on family characteristics such as number of siblings and birth order. The study is based on a large sample of the 2011 Spanish census and estimates the relative risks of early school leaving using Poisson…

This study has been conducted to examine the relationship levels of fathers who have 6- to 12-month-old babies with their fathers, and their attachment status with their babies. The sample group consisted of 313 fathers. Fatherhood Scale and Father-Infant Attachment Scale have been applied to the fathers who participated in our study,…

We compared speech acts and complexity of maternal speech to firstborn dizygotic twin and singleton infants. Nine twins and nine singletons were video-recorded at home in spontaneous face-to-face interactions with their mothers, from the 2nd to the 6th month. Continuous micro-analysis revealed that (a) open-ended questions, direct requests,…

Loneliness has been associated with several adverse psychosocial outcomes in childhood and adolescence. The present study aimed to investigate feelings of loneliness and social dissatisfaction in school-aged typically-developing (TD) siblings of children with an autism spectrum disorder (ASD). For this purpose, 118 siblings of children with ASD…

The purpose of the current study was to use the infant sibling design to explore whether proband traits of autism and ADHD could provide information about their infant sibling's temperament. This could help us to gain information about the extent to which infant temperament traits are differentially associated with autism and ADHD traits. We used…