Propinquity is one of the effects used to study group dynamics. For example, there was a British study done on immigrant Irish women to observe how they interacted with their new environments (Ryan, 2007). This study showed that there were certain people with whom these women became friends much more easily than others, such as classmates, workplace colleagues, and neighbours as a result of shared interests, common situations, and constant interaction. For women who still felt out of place when they began life in a new place, giving birth to children allowed for different ties to be formed, ones with other mothers. Having slightly older children participating in activities such as school clubs and teams also allowed social networks to widen, giving the women a stronger support base, emotional or otherwise.