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A stability analysis is carried out for both of them and the validity area is given.
A validity area is identified: (a) whole curve inside and outside limit area; (b) zoom on the validity area and focus on optimal value obtained by conditional estimation.
The PHQ-9 showed excellent internal reliability (Cronbach's alpha = 0.86) and discriminant validity (area under the curve = 0.95) [ 23].
The calibration (Hosmer-Lemeshow test) and discriminating validity (area under the ROC curve, sensitivity, specificity, likelihood ratios, predictive values) of the two optimised versions of the PSS will be evaluated.
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Internal consistency, test-retest reliability, validity, and area under the curve were assessed to differentiate between patient cohorts using the 2 instruments.We found high internal consistency for ENS6Q and SNOT-22 questionnaire at 0.93 (95% CI, 0.90-0.95) and 0.94 (95% CI, 0.94-0.96), respectively.
In 1928, a gift from banker and alumnus A. P. Giannini would catapult the University to the forefront of the emerging agricultural economics profession, bring validity to areas of economic inquiry, other than farm management and rural institutions.
Based on the taxonomy in [44], there are four potential validity threat areas, namely: external, construct, internal, and conclusion validity.
The validity of area-based measures derived from national census data as surrogates of individual income has been investigated [ 2, 10- 13].
It appears therefore, that the translated tool has significant criterion validity in the area of research activities.
Most authors did not seem familiar with the controlled vocabulary for validity in the area of neuromuscular dysfunction.
After using the Structured Clinical Interview for DSM Disorders (SCID) manual as the gold standard, the TDQ was shown to have good concurrent validity, with the area under the Received Operating Characteristic (ROC) curve being 0.92.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com