BMJ

The reliability and validity of the physical activity questions in the WHO health behaviour in schoolchildren (HBSC) survey: a population study

1 NSW Centre for the Advancement of Adolescent Health, Department of Paediatrics and Child Health, University of Sydney at The Children's Hospital at Westmead, New South Wales, Australia 2 Physical ...
ascopubs.org

Reliability and validity of the Functional Assessment of Cancer Therapy-Breast quality-of-life instrument.

Phase III randomized double-blind study to evaluate the efficacy of a polycarbophil-based vaginal moisturizer in women with breast cancer. This is the first published report on the validation of the ...
BMJ

Reliability and validity of measures taken during the Chester step test to predict aerobic power and to prescribe aerobic exercise

Objectives: To evaluate the reliability and validity of measures taken during the Chester step test (CST) used to predict VO 2 max and prescribe subsequent exercise. Methods: The CST was performed ...

ITSC Group releases 2025 annual research summary

SAN DIEGO, CA, UNITED STATES, January 28, 2026 / EINPresswire.com / — International Testing Services Center (ITSC Group) has released its 2025 Annual Research Summary, highlighting 25 years of ...