Sentence examples for desired level of power from inspiring English sources

In particular, the choice of an individual or cluster randomization design may affect the cost of achieving the desired level of power, other things being equal.

Statistical power analysis involves determining statistical power of a design given a statistical significance level, sample size, and effect size, or determining the sample size necessary to obtain a desired level of power for a specified effect size and significance level.

The required number for enrolment was then set to about 200 patients, based on the desired level of power precision in estimating this parameter (95% confidence interval: 42.9 57.1%, power 80%).

For a large study aimed at exploring weak effects, the answer can have major implications for funding and resources because the number of participants to be recruited (sample size) depends critically on the desired level of power; the higher the desired power, the larger the required sample size.

If it is likely that outcome data will not be available for some proportion of patients, λ i, on the outcome in the ith stage of the study, then the required sample size calculated using (2) should be multiplied by 1/(1− λ i ) to maintain the desired level of power for a complete-case analysis.

We also provide the means to obtain the optimal design when a desired level of all-pairs power is given.

Maintaining a desired level of security in a power system while maximizing its efficiency is a cornerstone of system operation.

15 ), (where, Z α, Z β, σ, µ p, µ n   represent the desired level of statistical significance, desired power, standard deviation [of control sample with greatest variance], mean of the positive control, and mean of the negative control, respectively).

Furthermore, the design is cost-efficient in the sense that, when compared to standard designs such as the case control study, far fewer patients need to be sampled to achieve a desired level of statistical efficiency and power.

To reach the desired level of evidence based on pre-study power analysis, a study group of 130 patients was desirable.

For a qualitative test, the goal is to determine a sample size that will provide sufficient power to determine sensitivity and specificity to the desired level of confidence for the particular application.