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Glossary Reliability Coefficient

measure of consistency in test results over time

The reliability coefficient is a measure used in statistics and psychology to assess the consistency or stability of a test or measurement over time. For example, if a hair growth study uses a specific method to measure hair density, the reliability coefficient would indicate how consistently that method produces the same results under the same conditions. A high reliability coefficient means the measurement is dependable and can be trusted to give similar results in repeated trials.

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research Health-related quality of life questionnaire for polycystic ovary syndrome (PCOSQ-50): development and psychometric properties

27 citations , January 2016 in “Quality of Life Research”

This study developed and validated a 50-item questionnaire, the PCOSQ-50, to effectively assess the quality of life in Iranian women with polycystic ovary syndrome, addressing aspects often missed by previous questionnaires.

research Development and validation of the Brigham Eyelash Tool for Alopecia (BELA): A measure of eyelash alopecia areata

6 citations , March 2021 in “Journal of the American Academy of Dermatology”

This study found that the Brigham Eyelash Tool for Alopecia (BELA) is a reliable measure for assessing eyelash loss in alopecia areata patients, demonstrating high inter- and intrarater reliability.

research Reliability of Histopathology for the Early Recognition of Fibrosis in Traction Alopecia: Correlation with Clinical Severity

5 citations , June 2019 in “Dermatopathology”

This study found poor agreement among dermatopathologists in identifying and grading fibrosis in traction alopecia, suggesting the need for better diagnostic methods for early fibrosis detection.

research 198 Reliable and interpretable segmentation for remote assessment of atopic dermatitis severity using digital images

April 2023 in “Journal of Investigative Dermatology”

This study reports that improvements to the EczemaNet pipeline, incorporating pixel-level segmentation and data augmentation, enhanced the reliability and interpretability of assessing atopic dermatitis severity from digital images.

research Reliability and validity of the Turkish Alopecia Areata Quality of Life Index

June 2026 in “TURKDERM”

This study successfully adapted the Alopecia Areata Quality of Life Index Questionnaire into Turkish, finding it to be valid and reliable for assessing the quality of life in Turkish patients with alopecia areata.

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