 | Harvey S. Levin - 1987 - 454 pages
...Patients The sources of patients and the conditions that influence who is included in a sample affect the extent to which the results of a study can be generalized to other samples and populations. Therefore, the selection of HI patients must depend on the population... | |
 | DIANE Publishing Company - 1996 - 317 pages
...reflect the true relationship of an intervention to the outcome of interest in the study subjects. External validity is the extent to which the results of a study may be generalized beyond the subjects of the study to other settings, providers, procedures, diagnostics,... | |
 | John Phillips - 2002 - 228 pages
...different from circumstances outside the lab, its conclusions may not be valid in any other situation. External validity is the extent to which the results of a study can be generalized. If your main purpose in reading a research report is to understand the underlying structure of a particular... | |
 | Dorothy Young Brockopp, Marie T. Hastings-Tolsma - 2003 - 562 pages
...definition and possible effects of each variable are presented in Table 7.2. External validity refers to the extent to which the results of a study can be generalized to the larger population. Threats to external validity include both population and ecological factors.... | |
 | Abbas Tashakkori, Charles Teddlie - 2003 - 792 pages
...rival explanations cannot be eliminated. Johnson and Christensen (2000) defined external validity as "the extent to which the results of a study can be generalized to and across populations, settings, and times" (p. 200). Even if a particular finding has high internal... | |
 | Kirk Eriksen - 2004 - 550 pages
...study can be applied to settings other than those studied in the research Population validity concerns the extent to which the results of a study can be generalized from the specific sample studied to a larger group of subjects (sometimes called the "target population... | |
 | Anthony J. Onwuegbuzie, Qun G. Jiao, Sharon L. Bostick - 2004 - 396 pages
...hypotheses cannot be eliminated. Johnson and Christensen (2000, p. 200) define external validity as "the extent to which the results of a study can be generalized to and across populations, settings, and times." Internal validity and external validity are very distinct... | |
 | María Luz Celaya Villanueva - 2005 - 91 pages
...validity as opposed to external validity or generalizability. 2.2. Generalizability Generalizability is the extent to which the results of a study can be applied to other situations. 2.3. Reliability Reliability is the measure which is used to check the... | |
 | Carol Leslie Macnee, Susan McCabe (RN.) - 2008 - 452 pages
...refers to how accurate the results are within the study itself, or internally. The second type, called external validity, is the extent to which the results of a study can be applied to other groups or situations. In other words, external validity refers to how accurately the... | |
 | Howard E. Barbaree, William L. Marshall - 2008 - 417 pages
...so threaten internal validity if the data are treated inappropriately. External validity refers to the extent to which the results of a study can be generalized beyond the testing conditions to other samples or circumstances. Construct validity is important here... | |
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External validity refers to the extent to which the results of a study can be generalized to a larger population. 