What is the primary purpose of a hypothesis?

What is the primary purpose of a hypothesis?

• A. A testable explanation for a phenomenon
• B. A non-testable guess
• C. A description of equipment
• D. A statistical measure

Answer: (A)

A hypothesis is a testable explanation for a phenomenon. In science, it’s a statement that proposes a relationship or mechanism that you can test through experiments or observations. Because it can be tested, you can gather data that either support or refute it, and you can generate predictions that follow from it. This makes the hypothesis the starting point for investigation and the guide for designing experiments. It’s not just a guess that can’t be tested, nor merely a description of equipment, nor a statistical measure. For example, “If a plant receives more light, its rate of photosynthesis increases” is a testable prediction that can be evaluated with data.

A hypothesis is a testable explanation for a phenomenon. In science, it’s a statement that proposes a relationship or mechanism that you can test through experiments or observations. Because it can be tested, you can gather data that either support or refute it, and you can generate predictions that follow from it. This makes the hypothesis the starting point for investigation and the guide for designing experiments. It’s not just a guess that can’t be tested, nor merely a description of equipment, nor a statistical measure. For example, “If a plant receives more light, its rate of photosynthesis increases” is a testable prediction that can be evaluated with data.