References

• 2011Guidelines for Reporting Reliability and Agreement Studies (GRRAS) were proposed1,002 cited
• 1987Clinical Measurement of Range of Motion905 cited
• 2000Reliability: What is it, and how is it measured?749 cited
• 1994Statistical Methodology for the Concurrent Assessment of Interrater and Intrarater Reliability: Using Goniometric Measurements as an Example636 cited
• 1978Reliability of Goniometric Measurements561 cited
• 1983Goniometric Reliability in a Clinical Setting549 cited
• 1991Reliability of Goniometric Measurements and Visual Estimates of Knee Range of Motion Obtained in a Clinical Setting347 cited
• 1987Reliability and Validity of Goniometric Measurements at the Knee346 cited
• 2001Intra- and intertester reliability and criterion validity of the parallelogram and universal goniometers for measuring maximum active knee flexion and extension of patients with knee restrictions254 cited
• 1997Intratester and intertester reliability and criterion validity of the parallelogram and universal goniometers for active knee flexion in healthy subjects152 cited
• 2000Penny-wise and pound-foolish: the impact of measurement error on sample size requirements in clinical trials112 cited
• 2011Validity and reliability of using photography for measuring knee range of motion: a methodological study75 cited
• 1988Intertester Reliability and Concurrent Validity of Fluid-based and Universal Goniometers for Active Knee Flexion