For example, this review may result in greater attention to the need to improve measurement systems and to attend more to the external validity
dimensions of studies.
This article establishes the extent to which proponents of African Womanhood have managed to defy the claims of the classical view of external validity
when they carried research on the dual-sex system among the Igbo of Nigeria and label their findings "African" and not solely "Igbo".
Although the use of random assignment increased internal validity, it decreased external validity
The results on the added eight external validity
ratings were parallel in many ways to those on the PRECIS ratings.
Experimentation in the 21st century: The importance of external validity
is the extent to which a proposed relation defined for an individual design is valid for a more general design.
Within the spectrum of empirical methods, they emphasize internal over external validity
The external validity
of RCTs, namely the reliability of any generalization from results of an individual study to the wider population of patients, is always open to question.
The Pearson Product Moment Correlation assessed associations conducted in conjunction with external validity
Only by answering both questions can researchers achieve the internal and external validity
that is the hallmark of rigorous scientific investigation.
First, that future research should pay more attention for assuring the internal validity of research designs than to marginal issues that might reduce the external validity
of a given study.
3,4) Before a measure can be considered valid in a new population, its psychometric properties, including reliability, internal validity and external validity
, must be established.
Chapter 7 is largely devoted to discussion of external validity
and maximizing generalizability of RCTs to community settings.
was considered sufficient if Criteria 1 to 4 were rated 'yes'.
Initial research has found the AGQ-S to exhibit acceptable internal consistency and has provided evidence supporting the factorial and external validity
of this measure (Conroy et al.