Biomedical subjects

L Nadalet

Publications and source records attributed to L Nadalet.

3 recordsLinked to original sources

PubMed2003

Functional and dysfunctional impulsivity: contribution to the construct validity.

OBJECTIVE: Impulsivity has been found to be an important trait of personality, whose consequences are not always negative although available questionnaires focused on its 'dysfunctional' aspect. METHOD: Dickman's Functional and Dysfunctional Impulsivity questionnaire has been translated into French, and filled out by students. The tetrachoric correlation matrices were factor analysed. RESULTS: The psychometric properties are very close to those of the English version, and we recovered both factors in males and females. The factor similarities between the genders (in our sample) and between the languages (English vs. French) are very good. The Dysfunctional scale is correlated with the Motor Impulsivity subscale of the Barratt Impulsiveness Scale, and both scales are grossly independent from Spielberger's Trait-Anxiety Inventory. CONCLUSION: Our results support a two-factor solution similar to the English one. Nevertheless, the validity of the functional factor remains to be investigated in further studies.

Adult↗

PubMed2000

The composite scale of morningness: further psychometric properties and temporal stability.

OBJECT: To assess the temporal stability of the French version of the Composite Scale of Morningness (CSM), and to replicate our previous findings in an independent sample in order to confirm the good internal properties of this instrument. METHOD: Sixty nursing students (11 males and 49 females) filled out the Composite Scale of Morningness on two occasions over a 13-month period. RESULTS: The scale's reliability is high: Cronbach's alpha = 0.874 in males and 0.904 in females. The CSM total scores are normally distributed and independent of gender. They do not differ between occasions, and are highly correlated: r = +0.885 in males and r = +0.930 in females. CONCLUSION: The French version of the CSM is stable over time and psychometrically reliable. These are the characteristics of a personality trait. Further studies should explore its personality, biological and genetic correlates.

Circadian Rhythm↗

PubMed1999

Psychometric properties of the French version of the composite scale of morningness in adults.

The objective of this study was to provide a reliable instrument to measure morningness for upcoming studies in French samples, using the Composite Scale of Morningness (CSM), which has been translated into French. Nursing students (n = 356) completed the questionnaire between February and March 1997. The total score obtained was independent of age and gender, and normally distributed. The reliability was high (Cronbach's alpha = 0.85), and factorial analysis confirmed the unidimensionality of the scale. Evening-type subjects are thought to score under 31, and morning-type subjects are thought to score above 44. As an external validation, morningness was associated, on weekdays and weekends, with early rising times and bedtimes and early peak times of physical and mental performance. In conclusion, we found that the English and the French versions of the Composite Scale of Morningness gave identical results. The scale is reliable and can be used for French-speaking adult samples. Nevertheless, normative data and other external validity criteria are needed.

Adult↗