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"A hypothesis is a proposed explanation for an observed phenomenon.""A proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation (working Hypothesis) or accepted as highly probable in the light of established facts."
Hypothesis is sometimes confused with the term "theory". While a hypothesis is an interpretation of a practical situation, a theory is based on greater information and implies the likelihood of truth.
Types of theories:
- Inductive-general based on observations
- Deductive-derived from a theory
- Nondirectional-states the differences and relation between variables
- Directional- states the direction of the relation or difference
- Null-states that there is no significant relation or difference between variables
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