“…In general, studies involving parents have often tended to focus more on mothers rather than fathers (e.g., Brannen & Nilsen, ; Brumariu & Kerns, ; Connell & Goodman, ). This could be because in Western society the majority of everyday parenting tasks are still more likely to be conducted by mothers than fathers, with mothers tending to be viewed as children's primary caregivers (Bianchi, ; Fraser & Warr, ), although national trends suggest a significant increase in fathers’ involvement in their children's lives since the 1970s (Bianchi, ; O'Brien & Shemilt, ). Thus, this could imply that unless one deliberately seeks equal representation of mothers and fathers in one's study of parents, which was not the case in the IMPACT trial or the IMPACT‐ME study, mothers may inevitably form the majority of such a sample.…”