The phrase "affecting the powers of" is correct and usable in written English.
It can be used in contexts discussing influence or impact on authority, abilities, or rights.
Example: "The new legislation is affecting the powers of local governments, limiting their ability to make independent decisions."
Alternatives: "influencing the authority of" or "impacting the capabilities of".
These fluctuations corresponding to the very subtle subpopulation structures are entangled with the normal inter-individual variations within a pure population and hence can hardly be adjusted without significantly affecting the power of association tests.
The small sample size is also a limitation affecting the power of this study.
In addition, the number of patients in the noneligible subgroup in the SOS study is low, especially affecting the power of the treatment interaction analyses.
A major concern of long-term prospective cohorts is attrition, potentially inducing biases and affecting the power of the study [ 52].
This further strengthens the observation that heritable regulation of gene expression becomes more polygenic in aging worms due to involvement of multiple loci affecting the power of eQTL detection in older individuals.
Other important factors affecting the power of association studies, beyond the actual genetic architecture of the trait, are the number of genotyped animals and the reliability of the observations used in statistical analysis.
After Roosevelt and Wilson came Harding and Coolidge and Hoover, forgettable figures every one.These cycles have done as much as scandals to affect the power of the presidency.
Third, the small sample size may have affected the power of the study.
Hogan: The speed and processing power of semiconductors affect the power of imaging, but I don't see imaging as necessarily being a driver of the overall semiconductor marketplace.
In addition, although the overall sample size in this study was sufficient for the estimation of important psychometric properties, the sample sizes for some of the subgroup analyses were small enough to adversely affect the power of the hypothesis tests.
