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Specifying type I error as 0.05 and a power ≥80%, (δ=42, σ=28), a sample size of ±14 patients will be needed to detect the specified differences.
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If the gap between two consecutive values was larger than the specified difference, an SPP was declared at that 2-bp position.
Using an effect size of 1.4 seconds (obtained from a pilot study and literature review) and alpha level of 0.05, the sample size of 25 subjects was calculated to have a 99% power to detect the specified difference in outcome.
Unless otherwise specified, differences cited in the text as statistically significant met the P < .05 threshold.
The trial was not designed to detect specified differences in secondary measures a priori.
We provide SAS macro coding and an R function, which for a given treatment difference, allow researchers to examine all possible sample sizes for specified differences are provided.
The main design focus is choosing the sample size that allows the clinical trial to discriminate between the null hypothesis of no difference and the alternative hypothesis of a specified difference of scientific interest.
The sample size for acceptability was calculated on basis of a design aimed at detecting a specified difference between the VAS scores of two treatments in a cross-over trial involving four oral formulations on four different days.
Touch events can be handled using the difference between depth map images and an event, if the depth difference is less than a specified difference between a climber's body area and the artificial climbing wall.
We therefore calculated the necessary sample size in bone histomorphometric studies according to a specified difference of 15% between two groups.
During taking notes, they tried to classified them, specified difference between percentages on Y-axis, then made comparison or contrast among them to identify a relation or significant information underlying the graph.
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