There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

Drug discovery involves decisions. We decide the likelihood that the development of a particular therapeutic candidate — for example, a putative drug target or chemical compound — will lead to a ...

Social validity examines whether the aims, methods and outcomes of behavioural interventions resonate with the values, needs and preferences of those directly affected. Originating in applied ...