Fathers are an important, though often underrepresented, population in family interventions. Notably, the inclusion of ethnic minority fathers is particularly scarce. An understanding of factors that promote and hinder father participation may suggest strategies by which to increase fathers’ presence in studies designed to engage the family unit. The current research examined Mexican origin (MO) fathers’ involvement in a family‐focused intervention study. Participants included 495 fathers from eligible two‐parent MO families with an adolescent child. Individual, familial, and culturally relevant predictors based on father, mother, and/or child report data were collected through pretest interviews and included in two separate logistic regression analyses that predicted the following: (1) father enrollment in the study and (2) father participation in the intervention. Results indicated that higher levels of maternal education and lower levels of economic stress and interparental conflict were associated with increased father enrollment in the study. Rates of father participation in the intervention were higher among families characterized by lower levels of interparental conflict, economic stress, and Spanish language use. Results highlight the relevancy of the familial and environmental context to MO fathers’ research participation decisions. These findings as well as their implications for future research and practice are discussed. 在家庭干预中父亲是个很重要,但通常未被充分代表的人群。尤其是少数民族父亲,鲜有将其纳入在内。了解促成、阻碍父亲参与的因素可能揭示提高父亲在家庭单元参与研究中在场的种种策略。本项研究考察出身于墨西哥的父亲所参与的以家庭为导向的干预研究。参与者包括495名父亲,选自符合条件的家有青少年的墨西哥双亲家庭。基于父亲、母亲,和/或孩子报告数据的个体、家庭以及文化相关的预测因素通过测前访谈进行收集,并包括在两项独立逻辑回归分析中。该逻辑回归分析预测了(1)研究中父亲的加入,(2)干预中父亲的参与。结果表明,研究项目中母亲更高的教育水平和更低的经济压力与双亲冲突同父亲参与度的提高有关。双亲冲突、经济压力以及西班牙语使用率较低的家庭中,父亲参与干预的比率更高。结果突出了家庭、环境背景对墨西哥父亲参与研究决定的相关性。我们讨论了这些发现以及它们对今后研究和实践的意义。