Study Erdman (1981): study NL 1978
- Public
- Heart patients, The Netherlands 1978-1979
- Sample
- Respondents
- N = 1752
- Non Response
- 6,0%
- Assessment
- Interview: face-to-face
Correlate
- Authors's Label
- Feeling of invalidity
- Our Classification
-
-
- Operationalization
- Factor derived from respouses of the following statements:
-I be at home as it is windy and cold
-I can do much work
-I have a lote of enderance
-I have not enough staying power
-I feel tired
-I feel a tight feeling in one's chest
-I feel very strong
-I can do things very fast
-I am very thired
-I can do loaded work
-I am often out of breath
-I can do very good sports
Observed Relation with Happiness
-Happy(4) M = 25.76 SD = 4.86
-unhappy(1-3) M = 29.34 SD = 3.81
difference M = -4.42 SD = 1.05
-happy(3) M= 25.66 SD = 5.06
-unhappy(1-2) M= 27.61 SD = 4.36
difference M= -1.95 SD = 0.70