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Validating the positive impact of Big Brothers Big Sisters nationwide

Big Impact, Proven Results

Each time Big Brothers Big Sisters pairs a child with a role model, we start something incredible: a one-to-one relationship built on trust and friendship that can blossom into a future of unlimited potential. 

And thanks to the first-ever nationwide impact study of a mentoring organization, we have the data to prove it.

Big Brothers Big Sisters San Diego

The Study

Public/Private Ventures, an independent Philadelphia-based national research organization, looked at over 950 boys and girls from eight Big Brothers Big Sisters agencies across the country selected for their large size and geographic diversity. 

This study, conducted in 1994 and 1995, is widely considered to be foundational to the mentoring field in general and to the Big Brothers Big Sisters Community-based program in particular.

Approximately half of the children were randomly chosen to be matched with a Big Brother or Big Sister. The others were assigned to a waiting list. The matched children met with their Big Brothers or Big Sisters about three times a month for an average of one year.

Researchers surveyed both the matched and unmatched children and their parents on two occasions: when they first applied for a Big Brother or Big Sister, and again 18 months later.

The Results

Researchers found that after 18 months of spending time with their Bigs, the Little Brothers and Little Sisters, compared to those children not in our program, were:

They also found that the Littles were more confident of their performance in schoolwork and getting along better with their families.

Sports Bigs

The Big Brothers Big Sisters Match

According to the study, our one-to-one matches are the driving force behind making an impact on children. 

A Big Brothers Big Sisters’ match is carefully administered and held to the strictest standards. Agency staff strive for matches that are safe and well suited to each child’s needs, as well as harmonious and built to last. The entire matching process, from the initial screening to the final pairing—and beyond—is made possible by your financial support.

The study found that Big Brothers Big Sisters’ matches consistently spend more time together, and continue as a match for longer periods, than those in other mentoring programs that Public/Private Ventures have studied.

In mentoring programs without this infrastructure,” said Walker, “we have found that relationships evaporate too soon for effects to be possible.

Big Brothers Big Sisters San Diego

The Impact

According to the study, Big Brothers Big Sisters programs were found to “focus less on specific problems after they occur, and more on meeting youths’ most basic developmental needs.”

The matches that were observed shared everyday activities: eating out, playing sports or attending sports events, going to movies, sightseeing, and just hanging out together.

But what mattered to the children were not the activities. It was the fact that they had a caring adult in their lives. Because they had someone to confide in and to look up to, they were, in turn, doing better in school and at home. At a time in their lives when even small choices can change the course of their future, the Littles were also avoiding violence and substance abuse.

In addition to the lives of Littles being changed for the better, the impact is contagious.

When Little Brothers and Little Sisters feel good about themselves,” said Mathis, “they can positively impact their friends and families, their schools, and their communities. And as this important study has shown, these young people believe in themselves because a Big Brother or Big Sister believed in them.

Big Brothers Big Sisters San Diego

Public/Private Ventures, a national research organization with more than 30 years of experience in studying child development and social service issues, conducted the independent research.

The study was funded by the Lilly Endowment, the Commonwealth Fund, the Pew Charitable Trusts, and an anonymous donor.

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