A hypothesis is a clear, concise, and testable statement that predicts the outcome of a scientific experiment or research study. It's a educated guess that guides the investigation and helps to focus the research.
A good hypothesis should have the following characteristics:
1. *Specific*: Clearly states what you expect to happen.
2. *Measurable*: Can be tested and evaluated using data.
3. *Testable*: Can be proven or disproven through experimentation.
4. *Relevant*: Relates to the research question and objectives.
5. *Simple*: Easy to understand and communicate.
There are different types of hypotheses, including:
1. *Null hypothesis* (H0): States there is no significant difference or relationship.
2. *Alternative hypothesis* (H1): States there is a significant difference or relationship.
3. *Directional hypothesis*: Predicts the direction of the relationship (e.g., "A" will be greater than "B").
4. *Non-directional hypothesis*: Doesn't predict the direction of the relationship (e.g., "A" will differ from "B").
Example of a hypothesis:
"Consuming a daily dose of vitamin C will reduce the severity of cold symptoms in adults."