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Related Concept Videos

Reliability and Validity01:29

Reliability and Validity

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Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
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Related Experiment Video

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Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
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A physical activity questionnaire: reproducibility and validity.

Nicolas Barbosa1, Carlos E Sanchez, Jose A Vera

  • 1Sport Medicine Program, Medicine Faculty, El Bosque University Bogotá , Colombia ; Physiology Laboratory of Adaptations, Medicine Faculty , Cochin Port Royal, MAP5 UMR CNRS 8145, Paris, France.

Journal of Sports Science & Medicine
|October 24, 2013
PubMed
Summary
This summary is machine-generated.

The Quantification de L

Keywords:
Physical activityadolescentschildrenquestionnairevalidity

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Area of Science:

  • Pediatric Exercise Science
  • Nutritional Epidemiology
  • Public Health Research

Background:

  • Accurate assessment of physical activity (PA) and daily energy expenditure (DEE) in children is crucial for understanding health and nutritional status.
  • Existing methods for estimating PA in children, particularly in high-altitude environments, may have limitations in reproducibility and validity.
  • The Quantification de L'Activite Physique en Altitude chez les Enfants (QAPACE) questionnaire was developed to assess PA in children at altitude.

Purpose of the Study:

  • To evaluate the reproducibility and validity of the QAPACE supervised self-administered questionnaire for estimating mean daily energy expenditure (DEE) in schoolchildren in Bogotá.
  • To assess the QAPACE questionnaire's comprehension among a large sample of students.
  • To compare DEE estimated by the QAPACE questionnaire with laboratory-based measurements of cardiorespiratory fitness.

Main Methods:

  • The QAPACE questionnaire's comprehension was assessed in 324 schoolchildren.
  • Reproducibility was evaluated using the Bland-Altman plot and intra-class correlation coefficient (ICC) in 162 students (test-retest).
  • Validity was assessed in 36 students (18 boys, 18 girls) by comparing questionnaire-derived DEE with peak oxygen uptake (Peak VO2) from ergo-spirometry and the Leger Test.

Main Results:

  • The QAPACE questionnaire demonstrated high reproducibility with an overall ICC of 0.96.
  • Reproducibility remained high across different age categories (8-10, 11-13, 14-16 years).
  • A significant correlation (ICC=0.76) was found between DEE estimated by the questionnaire and Peak VO2 measurements, indicating good validity.

Conclusions:

  • The QAPACE questionnaire is a reproducible and valid tool for estimating physical activity (PA) and DEE in Bogotá schoolchildren.
  • The supervised administration and the possibility for immediate clarification likely contributed to the high reproducibility.
  • The QAPACE questionnaire provides confidence for its use in large-scale epidemiological surveys assessing PA in similar populations.