Examlex
The zone of proximal development is a concept reflecting the difference between what a child can do independently with what she can do with assistance.
Margin of Error
An expression of the amount of random sampling error in a survey's results, indicating a range within which the true population parameter is expected to lie.
Confidence Interval
An array of values, produced from sample statistics, that has the potential to include the value of an undetermined population characteristic.
Sample Size
The number of individuals or observations included in a statistical sample.
Standard Deviation
A gauge for the extent of fluctuation or divergence in a group of numbers.
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