2. NOTES— WRITING A HYPOTHESIS
HYPOTHESIS—a suggested solution to or a prediction about a problem that is to be tested. It is an educated guess, based on research, observations, etc.
Hypotheses need to be testable; that is, researchers should be able to do an experiment and obtain evidence (data) that shows whether the hypothesis is true or not.
When investigating a cause-and-effect type problem, hypotheses are written as if-and-then statements.
For example: If plants are fertilized more, then they will grow taller.

3. HYPOTHESIS TEMPLATE-use this as a guide when writing if…then…statements
If ___________________ is ____________________
(independent variable) (how the IV is changed)
then ___________________ will __________________
(Dependent variable) (predict the effect on DV)

4. Writing Hypothesis Example
If the problem is: Is a dog’s behavior affected by the phase of the moon?
A correctly written hypothesis looks like:
If ___________________________ is __________________________
(independent variable) (how the IV is changed)
then _____________________ will ____________________________
(Dependent variable) (predict how DV will be affected)
the phase of the moon full
the dog’s behavior be more nervous than usual.

5. NOTES— WRITING A HYPOTHESIS
HYPOTHESIS—a suggested ____________________ to or a prediction about a problem that is to be __________. It is an educated guess, based on _______________, observations, etc.
Hypotheses need to be __________________; that is, researchers should be able do an ___________________ and obtain evidence (data) that shows whether the hypothesis is _________________.
When investigating a cause-and-effect type problem, hypotheses are written as ________________ statements.
For example: If plants are fertilized ________, then they will _____________________.

6. If ___________________ is ____________________
HYPOTHESIS TEMPLATE-use this as a guide when writing if…then…
If ___________________ is ____________________
(independent variable) (how the IV is changed)
then ___________________ will __________________
(Dependent variable) (predict the effect on DV)

7. Writing Hypothesis Example
If the problem is: Is a dog’s behavior affected by the phase of the moon?
A correctly written hypothesis looks like:
If ___________________________ is __________________________
(independent variable) (how the IV is changed)
then _____________________ will ____________________________
(Dependent variable) (predict how DV will be affected)