Findings on Happiness and subject: Change in parental status)

Correlate as named by investigatorPeople investigated
Findingsuccess of fertility treatmentFemale fertility patients, Great Britain, 1977-80
FindingGot a childInfertile couples and matched controls, followed 3 years, USA 1988-1990
Findingparenters versus placersUnmarried teenage mothers, USA, 1989-1990