Tuddenham (1959): study US 1934
Publication
- Author(s):
 - Tuddenham, R.D.
 - Title:
 - The Constancy of Personality Ratings over Two Decades.
 - Source:
 - Genetic Psychology Monographs,1959, Vol. 60, 3 - 29
 
Investigation
- Public
 - High school pupils, followed into adulthood, California USA, 1934-53
 - Sample
 - Respondents
 - N = 72
 - Non Response
 - Assessment
 - 
        Rating by experts                    
Clinical ratings of behavior (T1), clinical interviews (T2) 
Happiness Measure(s) and Distributional Findings
- Full text:
 - 
            Clinical rating of cheerfulness:
Based on independent interviews by two psychologists with one week interval.
Rating cheerful - glum on 9 step scale (rating scale not reported) - Classification:
 - A-CP-c-rc-n-9-a
 - Author's label:
 - Cheerfull/Glum
 - Error estimates:
 - Reliability: interrater agreement: T1: boys r=+.66 girls r=+.80 T2: men r=+.78 women r=+.78 Validity: