Examlex
A histogram is basically a bar chart in which the bars do not touch.
Experimental Design
The planning of an experiment to ensure that it can test hypotheses effectively and produce valid and reliable results.
Attrition
The loss of participants during the course of a study, which can potentially bias the results.
Maturation
The process of growth or development, often in the context of organisms or psychological development in research.
Diffusion
The process by which an innovation is communicated through certain channels over time among members of a social system.
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