A CROSS-VALIDATION OF THE FACTOR STRUCTURES OF CHRONOTYPOLOGICAL
QUESTIONNAIRES
Dmitriy A. Putilov
Objectives
The aim of the study was to evaluate
psychometrically a questionnaire battery for assessment of
the individual traits of sleep-wake patterns.
Methods
Two English language questionnaires
with 4 scales/subscales (Folkard et al., 1979; Horne, Ostberg,
1976) and two Russian language questionnaires with 6 scales/subscales
(Putilov, 1990, 1997) were included in the list of 92 questions/statements.
After translation and minor rewording, the English version
of the battery was given to 97 students of the University
of Alaska, and the Russian version was given to 117 students
of the Novosibirsk State University.
Results
It was found that both versions are
almost identical on
- Cronbach alpha for any scale/subscale.
- Magnitude of the difference between
age and gender groups on the mean scores.
- Correlation patterns between
the scales/subscales'scores.
- Afactor structure of the whole
battery.
- A factor structure of the 40-item
Sleep-Wake Pattern Assessment Questionnaire (SWPAQ; Putilov,
1990).
Besides, the latter result was also
in agreement with the result obtained earlier (Putilov, 1993)
for a general population sample of 2000 males and 2126 females
aged 9 to 79 yrs.
Conclusion
It is likely that the subjectively
assessed individual differences in the habitual features of
the sleep-wake cycle reflect the underlying differences in
the parameters of chronophysiological regulatory mechanisms.
Presented as an abstract: Putilov D.A.,
Booker J.M., Putilov A.A. A Cross-validation of the factor structures
of chronotypological questionnaires. 11th Eur. Conf. on Personality,
Friedrich-Schiller-University Jena, 21.7.-25.7.2002, Conf. Prog.
and Abst., B.Rammstedt, R.Riemann (Eds.). Lengerich et al.:
Pabst Science Publichers, 2002, p. 184 |
