Validating the Emotion-Focused Interactions Scale for teacher–student interactions     

Cipriano  Christina  Barnes  Tia Navelene  Kolev  Lyubo  Rivers  Susan  Brackett  Marc 《Learning Environments Research》2019,22(1):1-12

Learning Environments Research - Teacher–student interactions contribute to the quality of the classroom environment. Although numerous measures of these interactions exist, few target the...  相似文献   

Reliability and Validity of Finger Strength and Endurance Measurements in Rock Climbing     

Michail Lubomirov Michailov  Jiří Baláš  Stoyan Kolev Tanev  Hristo Stoyanov Andonov  Jan Kodejška  Lee Brown 《Research quarterly for exercise and sport》2018,89(2):246-254

Purpose: An advanced system for the assessment of climbing-specific performance was developed and used to: (a) investigate the effect of arm fixation (AF) on construct validity evidence and reliability of climbing-specific finger-strength measurement; (b) assess reliability of finger-strength and endurance measurements; and (c) evaluate the relationship between finger flexor all-out test scores and climbing ability. Methods: To determine the effect of AF, 22 male climbers performed 2 maximal strength and all-out tests with AF (shoulder and elbow flexed at 90°) and without AF (shoulder flexed at 180° and elbow fully extended). To determine reliability, 9 male climbers completed 2 maximal strength tests with and without AF and an all-out and intermittent test without AF. Results: The maximal strength test without AF more strongly determined climbing ability than the test with AF (r² = .48 and r² = .42 for sport climbing; r² = .66 and r² = .42 for bouldering, respectively). Force and time variables were highly reliable; the rate of force development and fatigue index had moderate and low reliability. The maximal strength test with AF provided slightly higher reliability than without AF (intraclass correlation coefficient [ICC] = 0.94, ICC = 0.88, respectively). However, smaller maximal forces were achieved during AF (484 ± 112 N) than without AF (546 ± 132 N). All-out test average force had sufficiently high reliability (ICC = 0.92) and a relationship to sport climbing (r² = .42) and bouldering ability (r² = .58). Conclusion: Finger strength and endurance measurements provided sufficient construct validity evidence and high reliability for time and force parameters. Arm fixation provides more reliable results; however, the position without AF is recommended as it is more related to climbing ability.  相似文献   

A simple relation between the Leimkuhler curve and the mean residual life     

N. Balakrishnan  José María Sarabia  Nikolai Kolev 《Journal of Informetrics》2010,4(4):602-607

In this paper, a simple relation between the Leimkuhler curve and the mean residual life is established. The result is illustrated with several models commonly used in informetrics, such as exponential, Pareto and lognormal. Finally, relationships with some other reliability concepts are also presented.  相似文献