Graduates of a public university by when they graduated: college, degree, student loans, where they live, engagement, giving and how they feel about the university. For testing fundraising, events, naming and the university's direction.

4 places · 7 traits

Members of a 1,200-member suburban church, by the service they attend (early, late, Spanish-language or mostly online): age, how often they come, involvement, giving and openness to change. For testing worship, giving campaigns and leadership changes.

4 places · 5 traits

People who gave to a regional food bank in the past two years, by how much they give a year: age, years giving, how they give, volunteering, why they give, how they want to hear from charities, household finances, plans for next year and trust in charities. For testing appeals, monthly giving and reporting on a nonprofit's supporters.

4 places · 9 traits

Members of a national professional association with local chapters, by region: membership type, age, years a member, involvement, who pays the dues, events attended, whether it is worth the dues, plans to renew and certification. For testing dues, events, chapters and positions on members of an association, union or club.

4 places · 9 traits

Adults living in a 2,400-home planned community, by section: owners and renters, household, years living there, involvement in the association, and views on the dues and the rules. For testing dues, rules, rentals and shared spaces before a board vote.

5 places · 6 traits

People who volunteered with a national network last year, by what they do: age, how often, years volunteering, main reason and whether they feel their time is well used. For testing recruiting, training, recognition and retention.

5 places · 5 traits