Examlex
According to Piaget,during the first two years of life a child is in what stage?
Two-Tailed Test
A statistical hypothesis test in which the critical area for a distribution is two-sided and tests whether a sample is greater than or less than a certain range of values.
Sample Proportions
The fraction of items in a sample that are of a particular type.
Standard Error
A measure of the standard deviation of the sampling distribution of a statistic, often used in the estimation of confidence intervals.
Test Statistic
A numerical quantity calculated from a sample of data, used in statistical testing to make decisions about a population parameter.
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