Lecture Note Measurement in Health and Disease : The Validity of Measurement Method By Martin Bland

There are lots of info about physical measurements, measurements, instrument, methods, and scales are described inside this lecture note. The lecture note presents explanation related to method, validation, example, and indirect methods.

Inside the lecture note we can find things related to validity, scale, quality, and the criterion validity. Below are grabbed from the lecture note:

University of York Department of Health Sciences Measurement in Health and Disease The Validity of Measurement Methods Martin Bland http//:martinbland.co.uk/ Validity No universally accepted definition of validity. concurrent validity, construct validity, content validity, convergent validity, criterion validity, discriminant validity, divergent validity, face validity, predictive validity. Construct validity Example: validity of child respiratory symptom questions Mean and standard deviation of PEFR (1/min) by reported respiratory symptoms (Kent Respiratory Study) Symptom Symptom present Symptom absent n s n s x x Morning cough 56 296.6 64.0 1697 313.1 55.1 P=0.03 Day or night 92 294.8 57.1 1643 313.6 55.2 P=0.001 cough Cough for three 43 295.7 68.8 1692 313.0 55.0 P=0.8 months Morning phlegm 25 306.2 73.1 1710 312.7 55.2 P=0.5 Day or night 27 298.0 53.9 1708 312.6 55.4 P=0.2 phlegm Phlegm for 18 309.6 69.4 1717 312.6 55.3 P=0.8 three months Chest wheezy 31 285.3 82.4 1704 313.1 5

Furthermore, this lecture note gives the reader info around instruments, technique, measurement, and measurement technique.

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