Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Deductive reasoning involves starting with a general principle and reaching a specific conclusion. It is often used to test hypotheses in scientific research by applying known facts or theories to new situations.
5 Must Know Facts For Your Next Test
Deductive reasoning moves from the general to the specific.
It is essential for forming and testing hypotheses in biology.
If the premises are true in deductive reasoning, the conclusion must also be true.
It helps scientists make predictions based on established theories.
Examples of deductive reasoning include predicting outcomes from Mendel's laws of inheritance.
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Related terms
Inductive Reasoning: Involves making broad generalizations from specific observations.
Hypothesis: A testable statement or prediction about a phenomenon that can be investigated through experiments.
Scientific Method: A systematic approach involving observation, hypothesis formation, experimentation, and conclusion.