Frontiers

Levels of Evidence, Quality Assessment, and Risk of Bias: Evaluating the Internal Validity ...

Clinical decisions in human and veterinary medicine should be based on the best available evidence. The results of primary research are an important component of that evidence base. Regardless of ...
Europe PMC

Internal, External, and Ecological Validity in Research Design, Conduct, and Evaluation.

Reliability and validity describe desirable psychometric characteristics of research instruments. The concept of validity is also applied to research studies and their findings. Internal validity ...
Europe PMC

Reliability and internal validity of the michigan hand questionnaire.

The Michigan Hand Outcomes Questionnaire (MHQ) remains one of very few to be based on validated and systematic methods in its creation. However, test-retest reliability and internal validity have not ...
BMJ

Strengths and Difficulties Questionnaire: internal validity and reliability for New Zealand ...

Objectives This observational study examines the internal construct validity, internal consistency and cross-informant reliability of the Strengths and Difficulties Questionnaire (SDQ) in a New ...
SciELO

Suicide Crisis Inventory-2: factor structure, internal consistency, and validity in a ...

Objective: To evaluate the factor structure, reliability, and validity of the Brazilian version of the Suicide Crisis Inventory-2 (SCI-2) among Brazilian adults. Methods: The SCI-2 was ...