sequential analysis

a class of statistical procedures in which decisions about sample size and the type of data to be collected are made or modified as the study proceeds, based on the cumulative findings. This approach contrasts with one in which the sample size is determined in advance and data are not analyzed until the entire sample is collected. A common form of sequential analysis is one in which data are collected until a desired outcome or level of precision is reached. Also, some clinical trials require an approach that allows researchers to stop data collection if the treatment is clearly not working or if participants are being harmed in some way.

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Psychology term of the day

May 9th 2024

ordinate

n. the vertical coordinate in a graph or data plot; that is, the y-axis. See also abscissa.