Question

External validity is defined as:

Group of answer choices

the extent to which a specific intervention produces a beneficial effect under ideal conditions

the degree to which a study is free from bias or systematic error

a measure of the extent to which an intervention, when deployed in the field under usual circumstances does what it is intended to do for a specified population

the degree to which a study may apply or be generalized to populations or groups who did not participate in the study

Answer 1

Ans- The degree to which a study may apply or be generalized to populations or groups who didnot participate in study

Researchs are carried out for welk being and benefit to mankind . Aim of research is produce knowledge for world.

But benefits of research can only be enjoyed by people when the knowledge about research it given to people outside lab otherwise that knowledge will remain inside thr lab and no benefit occur.

So external validity plays a vital role in spreading knowledge and benefits of research to people outside lab so whole world can benefited from it.