Younger, dissatisfied, and unhealthy - Relative age in adolescence.

We investigate whether relative age (i.e. the age gap between classmates) affects life satisfaction and health in adolescence.

Relative age effect and second-tiers: No second chance for later-born players.

The main objective of this research was to determine the existence of relative age effect (RAE) in five European soccer leagues and their second-tier competitions. Even though RAE is a well-known phenomenon in professional sports environments it seems that the effect does not decline over the years. Moreover, additional information is required, especially when taking into account second-tier leagues.

The relative age effect reversal among the National Hockey League elite.

Like many sports in adolescence, junior hockey is organized by age groups. Typically, players born after December 31st are placed in the subsequent age cohort and as a result, will have an age advantage over those players born closer to the end of the year. While this relative age effect (RAE) has been well-established in junior hockey and other professional sports, the long-term impact of this phenomenon is not well understood.