External validity — is the validity of generalized (causal) inferences in scientific studies, usually based on experiments as experimental validity. [ Mitchell, M. Jolley, J. (2001). Research Design Explained (4th Ed) New York:Harcourt.] Inferences about cause… … Wikipedia
Validity (statistics) — In psychology, validity has two distinct fields of application. The first involves test validity, a concept that has evolved with the field of psychometrics but which textbooks still commonly gloss over in explaining that it is the degree to… … Wikipedia
external validity — the extent to which study results can be generalized beyond the sample used in the study … Medical dictionary
Study heterogeneity — Meta analysis is a method used to combine the results of different trials in order to obtain a quantified synthesis. The size of individual clinical trials is often too small to detect treatment effects reliably. Meta analysis increases the power … Wikipedia
Ecological validity — is a form of validity in a research study. For a research study to possess ecological validity, the methods, materials and setting of the study must approximate the real life situation that is under investigation.Brewer, M. (2000). Research… … Wikipedia
Internal validity — is the validity of (causal) inferences in scientific studies, usually based on experiments as experimental validity [ Mitchell, M. and Jolley, J. (2001). Research Design Explained (4th Ed) New York:Harcourt.] . Details Inferences are said to… … Wikipedia
Criterion validity — A valid measure actually measures what it says it will measure. To define a measure as valid, one can assess different types of validity. The type of validity of measurement assessed depends on what the researcher wants to know. Criterion… … Wikipedia
Crossover study — A crossover study (also referred to as a crossover trial) is a longitudinal study in which subjects receive a sequence of different treatments (or exposures). While crossover studies can be observational studies, many important crossover studies… … Wikipedia
criterion validity — verification that the instrument correlates with external criteria of the phenomenon under study, either concurrently or predictively … Medical dictionary
išorinis tyrimo pagrįstumas — statusas T sritis biomedicinos mokslai apibrėžtis Tyrimo apibūdinimas, rodantis, ar dėsningumai, nustatyti tiriant tam tikrą asmenų grupę, tinka visai ↑populiacijai. atitikmenys: angl. external study validity ryšiai: sinonimas – išorinis tyrimo… … Lithuanian dictionary (lietuvių žodynas)
