Abstract
Calculation of sample size is a useful technique for researchers who are designing a study, and for clinicians who wish to interpret research findings. The elements that must be specified to calculate the sample size include alpha, beta, Type I and Type II errors, 1- and 2-tail tests, confidence intervals, and confidence levels. A computer software program written by one of the authors (MHE), Sample Size Expert, facilitates sample size calculations. The program uses an expert system to help inexperienced users calculate sample sizes for analytic and descriptive studies. The software is available at no cost from the author or electronically via several on-line information services.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 183-195 |
| Number of pages | 13 |
| Journal | The Family practice research journal |
| Volume | 14 |
| Issue number | 2 |
| State | Published - Jun 1 1994 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Medicine(all)
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An expert system for the calculation of sample size. / Ebell, Mark H.; Neale, A. V.; Hodgkins, B. J.
In: The Family practice research journal, Vol. 14, No. 2, 01.06.1994, p. 183-195.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An expert system for the calculation of sample size.
AU - Ebell, Mark H.
AU - Neale, A. V.
AU - Hodgkins, B. J.
PY - 1994/6/1
Y1 - 1994/6/1
N2 - Calculation of sample size is a useful technique for researchers who are designing a study, and for clinicians who wish to interpret research findings. The elements that must be specified to calculate the sample size include alpha, beta, Type I and Type II errors, 1- and 2-tail tests, confidence intervals, and confidence levels. A computer software program written by one of the authors (MHE), Sample Size Expert, facilitates sample size calculations. The program uses an expert system to help inexperienced users calculate sample sizes for analytic and descriptive studies. The software is available at no cost from the author or electronically via several on-line information services.
AB - Calculation of sample size is a useful technique for researchers who are designing a study, and for clinicians who wish to interpret research findings. The elements that must be specified to calculate the sample size include alpha, beta, Type I and Type II errors, 1- and 2-tail tests, confidence intervals, and confidence levels. A computer software program written by one of the authors (MHE), Sample Size Expert, facilitates sample size calculations. The program uses an expert system to help inexperienced users calculate sample sizes for analytic and descriptive studies. The software is available at no cost from the author or electronically via several on-line information services.
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M3 - Article
C2 - 8053384
AN - SCOPUS:0028453655
VL - 14
SP - 183
EP - 195
JO - The Family practice research journal
JF - The Family practice research journal
SN - 0270-2304
IS - 2
ER -