Your hypothesis should say what you want to prove as a result of your research study. Provided below are some sample hypotheses based on their corresponding research questions:

Research Question:
To what extent is the attitude of high school students toward conserving energy affected by their grade point average?

Hypothesis:
The attitude of high school students toward conserving energy is affected by the student's grade point average.

Research Question:
To what extent is the attitude of high school students toward conserving energy affected by their participation in school-related extra-curricular activities?

Hypothesis:
The attitude of high school students toward conserving energy is affected by the number of school-related extra-curricular activities (e.g., volleyball team, school government, band) that the students complete.

Research Question:
To what extent is the attitude of high school students toward photovoltaic (PV) system technology affected by their parent's attitude?

Hypothesis:
The attitude of high school students toward photovoltaic (PV) systems is affected by their parent's attitude.

Research Question:
To what extent is the attitude of citizens toward photovoltaic (PV) system technology affected by their years of education?

Hypothesis:
The attitude of citizens toward photovoltaic (PV) systems is affected by their years of education.

It is recommended that you include in your research study a hypothesis that describes what you want to prove and also explains your reasons for selecting this hypothesis. In other words, what are the reasons why you think your hypothesis might be true?