Examlex
What was the function and importance of S-necked flasks in Louis Pasteur's experiments in disproving spontaneous generation?
Population
The full set of subjects or entities analyzed in a statistical investigation.
Experimental Studies
Research designs that involve the manipulation of one or more variables to determine their effect on one or more outcome variables.
Observational
Relating to the collection of data by observing and measuring phenomena as they occur naturally, without manipulation or intervention.
Categorical Variable
A variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual to a particular group or category.
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