Research Hypothesis Vs Null Hypothesis
The difference between Research Hypothesis Vs Null Hypothesis is as follows:
Research Hypothesis
A Research Hypothesis is a tentative statement that proposes a relationship between two or more variables. It is based on a theoretical or conceptual framework and is typically tested through empirical research.
Null Hypothesis
A Null Hypothesis is a statement that proposes that there is no relationship between two or more variables. It is the opposite of the research hypothesis and is used as a comparison in statistical analysis.
Comparison Table:
| Aspect | Research Hypothesis | Null Hypothesis |
|---|---|---|
| Definition | Tentative statement that proposes a relationship between two or more variables | Statement that proposes no relationship between two or more variables |
| Purpose | To guide research and provide a framework for testing the relationship between variables | To provide a comparison for the research hypothesis in statistical analysis |
| Format | Expressed in a declarative sentence that describes the expected direction and strength of the relationship between variables | Expressed in a declarative sentence that proposes no effect or relationship between variables |
| Testing | Tested through empirical research | Tested against the research hypothesis in statistical analysis |
| Conclusion | Supported if statistical analysis provides evidence to reject the null hypothesis | Rejected if statistical analysis provides evidence to support the research hypothesis |
| Example | “There is a positive relationship between physical exercise and mental health.” | “There is no relationship between physical exercise and mental health.” |
In summary, a research hypothesis proposes a relationship between variables, while a null hypothesis proposes no relationship between variables. The research hypothesis guides empirical research, while the null hypothesis is used as a comparison in statistical analysis. The research hypothesis is supported if statistical analysis provides evidence to reject the null hypothesis, while the null hypothesis is rejected if statistical analysis provides evidence to support the research hypothesis.
