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Results 1 - 10
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4,897
The Concept of External Validity
- Journal of Consumer Research
, 1982
"... A s it is usually phrased, the question of external validity has to do with whether the results of a behavioral study would hold for other persons, settings, times, or places. Consistent with the original notions of Campbell and Stanley (1966) and Cook and Campbell (1977), we have argued that this c ..."
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Cited by 49 (0 self)
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A s it is usually phrased, the question of external validity has to do with whether the results of a behavioral study would hold for other persons, settings, times, or places. Consistent with the original notions of Campbell and Stanley (1966) and Cook and Campbell (1977), we have argued
Theory and external validity
- Journal of the Academy of Marketing Science, Coral Gables Florida, USA
, 1999
"... concerns require more attention in theoretical research. The author argues that one cannot “enhance ” external validity by choosing one method over another. External validity can only be “assessed ” by better understanding how the focal variables in one’s theory interact with moderator variables tha ..."
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Cited by 16 (0 self)
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concerns require more attention in theoretical research. The author argues that one cannot “enhance ” external validity by choosing one method over another. External validity can only be “assessed ” by better understanding how the focal variables in one’s theory interact with moderator variables
Application and External Validation
, 2014
"... copyright holder. Copyright © 2011 by the authors ..."
Abstract External validation Internal validation
, 2008
"... AIUB-CHAMP01S fact sheet The AIUB-CHAMP01S was, together with other gravity field models, validated by Thomas Gruber from IAPG in Munich. From the terrestrial height data sets as well as from the gravity field models geoid heights and geoid slopes have been derived and compared. For further details ..."
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concerning the method we refer to Gruber (2004). The external validation confirms the results of the internal validation and shows that the AIUB-CHAMP01S is one of the best gravity field models using only CHAMP data of one year (see comparison to the ITG-CHAMP01S). The results also show the strong impact
Issues in External Validation and Translation Methodology
, 2006
"... Starting with the proposition that “if we want more evidence-based practice, we need more practice-based evidence, ” this article (a) offers questions and guides that practitioners, program planners, and policy makers can use to determine the applicability of evidence to situations and populations o ..."
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other than those in which the evidence was produced (generalizability), (b) suggests criteria that reviewers can use to evaluate external validity and potential for generalization, and (c) rec-ommends procedures that practitioners and program planners can use to adapt evidence-based interventions
External validity of ‘‘trivial’’ experiments: The case of laboratory aggression.
- Review of General Psychology,
, 1997
"... The external validity of artificial "trivial" laboratory settings is examined. Past views emphasizing generalizability of relations among conceptual variables are reviewed and affirmed. One major implication of typical challenges to the external validity of laboratory research is tested w ..."
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Cited by 104 (26 self)
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The external validity of artificial "trivial" laboratory settings is examined. Past views emphasizing generalizability of relations among conceptual variables are reviewed and affirmed. One major implication of typical challenges to the external validity of laboratory research is tested
Practical experiences on the necessity of external validation
"... In developing a prognostic model, data dependent methods are usually utilized to optimize the fit in the data at hand. For example, using support vector machines, suitable function parameters for the kernel functions need to be selected. Similarly, the parameters in a logistic regression model are o ..."
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Cited by 2 (1 self)
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in which model development and testing can be performed. Prominent examples include tenfold cross-validation or bootstrapping. By contrast, a stringent model validation requires at least two independent data sets. Depending on the second data set, temporal and external validation are distinguished [2
External Validity and Partner Selection Bias
, 2011
"... Program evaluation often involves generalizing internally-valid site-speci
c estimates to a di¤erent target population. While many analyses have tested the assumptions required for in-ternal validity (e.g. LaLonde 1986), there has been very little empirical assessment of external validity in any con ..."
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Cited by 2 (0 self)
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Program evaluation often involves generalizing internally-valid site-speci
c estimates to a di¤erent target population. While many analyses have tested the assumptions required for in-ternal validity (e.g. LaLonde 1986), there has been very little empirical assessment of external validity in any
Results 1 - 10
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4,897
