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Intro to Biology -
Vocabulary Terms
| Question | Answer |
|---|---|
| control | that which purposefully direct, manipulate, manage, regulate, restrain, or cause change |
| control Group | in an experiment, the group closely resembling the experimental group in many demographic variables but not receiving the factor under study and thereby serving as a comparison group when results are evaluated |
| dependent variable | the event studied in an experiment and expected to change when the independent variable is changed |
| experiment | a scientific approach to testing a hypothesis |
| experimental group | the group of subjects that are exposed to the variable in a control experiment |
| hypothesis | a tentative explanation or educated guess about a problem |
| independent variable | a manipulated variable in an experiment; its presence determines the change in the dependent variable |
| procedure | a series of steps taken to carry out an experiment |
| reliability | yielding the same or compatible results in different experimental trials |
| sample size | the number of units |
| scientific method | a methodical approach to designing and conducting an experiment |
| theory | a major hypothesis that is accepted by the scientific community because it has repeatedly survived several tests |
| validity | correctly inferred or deduced from a premise |