Correlational finding on Happiness and Psychotic (f99)
Subject code: H13ac11d

StudyHolloway & Carson (1999): study GB 1990
TitleSubjective Quality of Life, Psychopathology, Satisfacton with Care and Insight: An Exploratory Study.
SourceInternational Journal of Social Psychiatry, 1999, Vol. 45, 259 - 267
PublicMental patients, UK, followed 3 years,1990-1993
SampleNon-probability purposive sample
Respondents N =70

Author's labelChange in psychiatric symptoms
Page in Source 264-5
Our classificationPsychotic (f99), code H13ac11d
Negative psychotic symptoms and depression assessed by 
a. Demanding attention
b. Suicide ideas or behaviour
c. Panic attacks and phobias
d. Overactivity and restlessness
e. Laughing or talking to self
f. Acting out bizarre ideas
g. Posturing and mannerisms
h. Socially unacceptable habits or manners
The Schedule for the Assessment of Negative 
Symtoms(SANS)(by psychiater)
Assessed T1 and T3 (18 month interval)

Observed Relation with Happiness
O-DT-u-sqt-v-7-ar=-.23 p < .15
T1-T3 change in happiness by T1_T3 change symtoms 
(T1-T3 18 month)

Appendix 1: Happiness measures used
CodeFull Text
O-DT-u-sqt-v-7-aSelfreport on single question, asked twice in interview:

How do you feel about your life as a whole......?
7 delighted
6 pleased
5 mostly satisfied
4 mixed
3 mostly dissatisfied
2 unhappy
1 terrible

Summation: arithmetic mean

Name: Andrews & Withey's "Delighted-Terrible Scale" (original version)
Also known as Lehman's 'Global lifesatisfaction'

Appendix 2: Statistics used
rPRODUCT-MOMENT CORRELATION COEFFICIENT (Also "Pearson's correlation coefficient' or simply 'correlation coefficient')
Type: test statistic.
Measurement level: Correlate: metric, Happiness: metric
Range: [-1; +1]

r = 0 no correlation ,
r = 1 perfect correlation, where high correlate values correspond with high happiness values, and
r = -1 perfect correlation, where high correlate values correspond with low happiness values.
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.