Examlex
Because a child's state of health can change in a short period of time, observations should be:
Validity
The degree to which a measure actually measures what it is intended to measure.
Researcher's Interpretations
The conclusions or explanations made by researchers based on their findings from studies, which are subject to academic scrutiny and debate.
Measurements
The process of obtaining quantitative data or the magnitude of something using standard units.
Experimental Groups
Groups in scientific research that receive the intervention or treatment being tested, as opposed to a control group which does not.
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