Examlex
The three basic requirements of a scientifically acceptable achievement, aptitude, or intelligence test are standardization, reliability, and validity.
Sample Size
The quantity of data points or observations gathered in a sample from a population to conduct statistical analysis.
T-statistic
A type of statistic used in hypothesis testing, calculated as the ratio of the departure of the estimated value of a parameter from its hypothesized value to its standard error.
Sample Size
The count of data points or observations gathered in a research study for deriving conclusions.
Population Mean
The average of a set of characteristics (e.g., measurements, scores) for every individual or entity in the entire population.
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