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How and Why Did Evaluation Research Develop? How Does It

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How and why did evaluation research develop? How does it differ from other types of social science research?


Definitions:

Standard Deviation

A statistic that measures the dispersion or spread of a set of numbers from their mean; it quantifies variability or volatility.

Weights

Objects used to measure the mass of an item or used as a resistance for exercise and training.

Sampling Distribution

The likelihood distribution related to a specific statistic derived from a random sample.

Normal Model

A statistical model, also known as the normal distribution or Gaussian distribution, characterized by a bell-shaped curve symmetrical about its mean.

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