Correlational finding on Happiness and subject: Military skill

StudyRahe et al. (1976): study US 1971
TitleSerum Uric Acids, Cholesterol and Psychological Moods throughout Stressfull Naval Training.
SourceNaval Health Research Center, Report nr. 76-18, 1976, San Diego, California, USA
PublicNavy recruits, followed 4 weeks, USA, 197?
SampleNon-probability chunk sample
Respondents N =117

Author's labelSucces in military training
Page in Source 883, 884, 886
Our classificationMilitary skill
51 volunteers had completed 5 weeks of basic recruit 
training and spent next 4 weeks in special 
pre-Underwater Demolition Team training program; on the 
basis of test results at the end of week 4 of the 
training men were divided into pass and fail groups. 66 
volunteers had also completed 5 weeks of basic recruit 
training and spent next 4 weeks in the Recruit Training 
Center choir program (control group).

a. Pass
b. Fail
c. Control
Observed distributionN= a:27, b:24, c:66
Underwater demolition team (UDT) training is a 4 month 
program with attrition rate of trainees between 30% and 
70%. A pre-UDT program was designed to select and 
pretrain volunteer naval recruits during their last 4 
weeks of a 9 week basic recruit training program.

Observed Relation with Happiness
a: M = 15,1
b: M = 13,2
c: M = 12,4

Appendix 1: Happiness measures used
CodeFull Text
A-ASA-m-mqr-v-3-aSelfreport on 7 questions, repeated 15 times during 2 month (experience sampling)

Below is a list of words describing moods and feelings. Indicate how each of these words applies to how you feel now.
A Contented
B Calm
C Happy
D Pleased
E Satisfied
F Cheerful
G Good

Rating options (same for all items):
1 not at all
2 somewhat or slightly
3 mostly or generally

Summation: average over 2 months.

Name: Happiness subscale of Ryman et al (1974) Mood Questionnaire (MQ)

Appendix 2: Statistics used
Type: descriptive statistic only.
Measurement level: Correlate: dichotomous, Happiness: metric
Range: depending on the happiness rating scale of the author; range symmetric about zero.

Meaning: the difference of the mean happiness, as measured on the author's rating scale, between the two correlate levels.
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.