Findings on happiness in Gelfin et al. (1998): study IL 1996

Author(s)Gelfin, Y.; Gorfine, M.; Lerer, B.
TitleEffect of Clinical Doses of Fluoxetine on Psychological Variables in Healthy Volunteers.
SourceAmerican Journal of Psychiatry, 1998, Vol. 155, 290 - 292
PublicParticipants in single blind drug experiment. Israel,1995
 - Age: M=38,5 years; SD=12,9; range 22-63 - 13 employed - 12 living with partner - no history of psychiatric illness in first degree relatives - good physical health - not taking medication - not using any substances (besides nicotine in 7 cases)
Survey nameUnnamed study
SampleNon-probability purposive sample
Respondents N =15
Non ResponseNot available
AssesmentInterview: face-to-face
 Evaluation with self- and observed-rated instruments. Telephone at the end of each week in which the respondent was not seen in person
Happiness measure(s) used
Full textSelfreport on single question: 'How would you rate your overall life-satisfaction and contentment during the past week?' 1 very poor 2 poor 3 fair 4 good 5 very good Last item (nr 277) in 'Quality of life enjoyment and satisfaction questionnaire (Q-LES-Q) by Jean Endicott. The focus of this questionnaire is on health problems and physical performance.
Author's labelLife Satisfaction
Page in publication291
RemarksBaseline happiness: M=3,8; SD=0,4 Average at 10 weeks: T1: M=3,7; SD=0,5; T2: M=3,7; SD=0,5; T3: M=3,9; T4: M=3,9; SD=0,4
Finding used in
nation ranks
 On original range 1 - 5On range 0 - 10
Standard deviation0.40

Correlational findings

Author's labelSubject Code
Subject description
Effect of FluoxetineH04ab02Actual changes in happiness
Effect of FluoxetineH17af07Medication, also classified as above ↑
Effect of FluoxetineH16ab02cPsycho-pharmacals, also classified as above ↑