研究工具的核心在于其信度(reliability)和效度(validity)的双重考量。信度关乎测量的稳定性，即在不同时间和人群中是否能保持一致的准确度。它确保了研究结果的一致性和可重复性。而效度则更为深入，分为内容效度和增量效度。内容效度考察的是测量工具是否确实捕捉了所声称要测量的变量，即它是否准确地反映...
内部一致性信度 internal consistency reliability: 一般用克隆巴赫系数(Cronbach α)来检验,至少大于0.6 效度validity:是否测量了想测量的变量the extent to which a test measures what it claims to measure Face validity表面效度:字面意思上看是在测量该变量 内容效度content validity:由专家用知识和经验判断,指标是否...
Learn the difference between reliability and validity of measurement. See the measurement validity definition. Understand the 4 types of...
This chapter begins an in-depth study of measurement by introducing the "classical theory" of measurement, which serves this book's level of discussion. The classical theory hinges on the concepts of reliability and validity as the indices of the quality of the measurement process. According, ...
Validity asks the question, ‘Does the test measure what it claims to do?’, whereas reliability asks, ‘Was each test of a batch the same?’ Both are essential for maintaining the accuracy of stretching tests. 有效性和可靠性是二个根本因素在计量误差。 有效性问问题, `做测试措施什么它声称...
The design of a test can contribute to measurement error and affect the validity and reliability of students' test scores. Nursing faculty should strive to minimize measurement error by following certain design rules when preparing a test. The author offers guidelines to help teachers design tests ...
We used Cronbach’s coefficient alpha (α) to assess internal consistency reliability, Pearson product-moment correlation (r) to assess concurrent validity and multiple-group confirmatory factor analysis to analyze factorial structure and measurement invariance of the SMAQ. Results All participants were ...
Errors in PD of bony landmarks can perturb the anatomical axes and affect the validity and reliability of kinematic measurements. The validity and reliability of PD for kinematic measurement needs to be explored before recommending its wider use. A systematic search of 15 electronic databases ...
Therefore, the purposes of the present study were to (i) validate a Chinese version of the T-SFoMOS, and (ii) psychometrically test the reliability, validity, and measurement invariance of the T-SFoMOS-C among Chinese university students....
The aim of this study was to test the validity and reliability of a new method for measuring inversion/eversion ankle stiffness in a weight bearing posture. The primary findings of our study suggest that the use of a medial/lateral swaying cradle device provides valid and reliable measurement of...