Commitment and Extra-Dyadic Sexual Activity in College Students' Friends with Benefits Relationships: Moderating Effects of Gender.

Friends with benefits relationships (FWBRs) are a common form of relationship for college students that combine aspects of friendship with sex, yet little is known about commitment in these relationships and whether they are more similar to casual relationships or to romantic relationships. We investigated associations between investment, alternatives, and satisfaction, with commitment (per the Investment Model) in college students' FWBRs and examined how associations between variables differ by participant and partner gender. Primary analyses were conducted with male-female FWBRs ( = 252).

The influence of age on induced sputum differential cell counts in normal subjects.

Study Objectives: Sputum induction is increasingly used as a research technique and as a clinical tool. In order to evaluate abnormal results, normal ranges need to be fully developed. Although a number of studies have described normal ranges, none have investigated the effect of the age of the subject on these results.