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C.2 Doubtful survey
The statistical reliability of the survey’s results is questionable. The number of participants, N, might constitute an insufficiently small sample to draw any reliable conclusions about {the problem}. The larger the overall population of B compared to the sample of N participants, the less reliable the survey’s results. Also, the sample might be unrepresentative of all population of B. For example, perhaps the N participants happened to be those ones who are what. Lacking assurance that the N participants are statistically representative of all population, the author cannot draw any reliable conclusion based on the survey.
Example
Even if the participants' punctual and regular attendance was due to the breakfasts provided to them, the statistical reliability of the trial program's results is questionable. The number of participants, 100, might constitute an insufficiently small sample to draw any reliable conclusions about how district students 5-12 years of age would behave under similar conditions---as a group. The larger this group compared to the sample of 100 participants, the less reliable the study's results. Also, the sample might be unrepresentative of district students as a group. For example, perhaps the 100 participants happened to be children who eat small dinners and are therefore hungry for breakfast. (AA26) |
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