ALTERNATIVE HYPOTHESIS Meaning and
Definition
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An alternative hypothesis, also known as the research or experimental hypothesis, refers to a statement or proposition proposed to challenge or contrast a null hypothesis. In hypothesis testing, an alternative hypothesis postulates the existence of a relationship, effect, or difference between variables being tested. It is considered the opposite or alternative to the null hypothesis, which assumes no relationship or effect in the population being studied.
The alternative hypothesis often represents the researcher's belief or expectation that there is a significant relationship or difference between variables. It is formulated based on previous theories, existing research, or initial observations that suggest the possibility of a specific outcome or effect.
When conducting hypothesis testing, researchers collect data and perform statistical analyses to either accept or reject the null hypothesis. If the evidence strongly supports the alternative hypothesis, it is reasonable to reject the null hypothesis in favor of the alternative, suggesting that the observed relationship or effect is likely present in the population.
It is important to note that an alternative hypothesis is not necessarily considered proven or true; rather, it suggests the possibility of an alternative explanation or outcome. The formulation and testing of alternative hypotheses are fundamental to research inquiries and scientific investigations, as they challenge established theories and contribute to the advancement of knowledge in various fields.
Common Misspellings for ALTERNATIVE HYPOTHESIS
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Etymology of ALTERNATIVE HYPOTHESIS
The term "alternative hypothesis" originated from the field of statistics and research methodology. The word "alternative" is derived from Latin "alternativus", which means "to choose one of two alternatives". "Hypothesis" comes from Greek "hupothesis", which means "a suggested explanation" or "a basis for reasoning".
In the context of statistical hypothesis testing, researchers typically begin by stating a null hypothesis, which assumes that there is no statistically significant difference or relationship between variables. The alternative hypothesis, on the other hand, proposes an alternative explanation or relationship that the researcher believes to be true.
The term "alternative hypothesis" was likely coined to emphasize the existence of an alternative possibility, challenging or contradicting the null hypothesis. By considering both hypotheses, researchers are able to assess the evidence and determine which hypothesis is more likely or supported by the data.
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