| Tests of internal and external validity indicate that there are indeed discriminable response styles of child noncompliance toward teachers. |
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| Small sample sizes limit the use of inferential statistics and decrease the external validity or generalizability of the findings. |
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| When non-random methods of sampling are employed, external validity becomes questionable. |
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| Nineteen studies were assessed for internal validity and external validity. |
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| Given this methodological limitation, the external validity of the present findings is clearly an issue. |
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| So that the conclusions can be applied elsewhere, threats to external validity should be carefully monitored. |
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| In reviewing causal research, the issues of internal and external validity become more salient than in other forms. |
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| This implies limits to both the internal and external validity of the direct observation data. |
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| This is not necessarily a disadvantage, but it does require that the external validity of any conclusions be carefully assessed. |
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| Properly done, statistical analysis can greatly enhance the external validity of any conclusions. |
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| Multivariate prediction models need to be evaluated in cohorts distinct from the derivation set to determine external validity. |
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| A substantial and growing area of psychological research, cognitive science, knowingly and by design magnifies internal validity at the expense of external validity. |
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| They have implications for both the internal and external validity of the results. |
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| In the federal government context, external validity is always a major concern since evaluation findings are usually meant to inform future decision-making. |
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| In formulating credible and useful conclusions for management to act on, the internal validity of the evaluation is important, but external validity issues cannot be ignored. |
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| This interaction is a threat to internal and external validity. |
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| In the case of federal government programs, less rigorous comparisons are generally possible and may be subject to many threats to internal validity and to external validity. |
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| This, in turn, means being explicitly aware of the major threats to external validity that, if left unaddressed, could weaken the credibility and decision-making usefulness of the conclusions reached. |
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| This raises questions of external validity. |
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| This checklist has been validated for reliability and external validity. |
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| There are several aspects of external validity. |
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| However, many studies lack external validity. |
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| This ability to generalize is known as the external validity of the evaluation and is limited to the assertion that under identical circumstances, implementing the program elsewhere would result in the same outcome. |
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| Each research document should be scrutinized to establish two things: the internal validity of the research and the external validity of the research. |
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| In evaluating research, careful classification of the type of research being reviewed is critical in establishing both internal validity and external validity. |
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| Increased control over the experimental condition increases the internal validity of the study, but decreases the external validity at the same time. |
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| However, a credible review of research requires careful scrutiny of each available research document, including evaluation of the internal and external validity of the findings presented in each report. |
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