Control Group
A practiced command grouping is like to the experimental grouping inward all agency except for the departure inward the experimental status (that is the independent variable that the researcher changes).
Let us hash out these price amongst a uncomplicated experiment
Suppose a researcher has developed a bio-fertilizer together with wants to examine its outcome on constitute growth. Therefore the experiment is “Effect of Bio-fertilizer ‘x’ inward constitute growth"
See the Figure 1 together with ii for agreement these price inward research
The variable is the element y'all mightiness mensurate inward an experiment
A variable is whatever factor, trait, or status that tin convey dissimilar values, alter inward variable influences the outcome of experimental research
Three types of variables:
1. Independent variable: The variable that researcher changes or the researcher think it volition ship on the subject variable
2. Dependent variable: The variable that is affected past times change inward independent variable
3. Controlled variable: The variable that is kept constant or same throughout the experiment.
Control group | Controlled variable |
It is the grouping that y'all are non conducting experiment (Figure 1) Know more: Experimental grouping vs command group | All the variable that are kept constant or same throughout the experiment. (Figure 2) |
The researcher is non changing the independent variable | The researcher has kept this variable constant or given a measure value |
Helps to compare experimental outcome amongst non experimental natural outcome (control group). It increases the reliability together with validity of experimental results | Essential to become an unbiased outcome on the outcome of independent variable studied past times the researcher |
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