# Hypotheses

Teachers or students who want the original PPT please tweet @psychopepper

#### Learning Objectives

• To KNOW and UNDERSTAND what a directional and non-directional hypothesis is.
• To ANALYSE a worked example of hypothesis writing in order to create on themselves.
• To APPLY knowledge of hypothesis to the grass heads project
• To APPLY knowledge of hypothesis to past exam questions

### Lesson Outline:

1. Identify the IV and DV in a hypothesis.
2. Take notes on definition of hypotheses in general and compare to science
3. Take notes on definition of non directional hypothesis
4. Take notes on definition of directional hypothesis
5. Follow structure in booklet through a worked example of creating a hypothesis
6. Using example in booklet for directional hypothesis try writing a hypothesis for two experiments.
7. Using example in booklet for non-directional hypothesis try rewriting the hypothesis for two experiments above as non-directional hypothesis.
8. Complete grasshead logbook. Or pdf

#### Content Recap:

Hypotheses: States what you believe is true. It is a precise and testable statement of the relationship between two variables. It is a statement, not a question or a prediction.

Directional Hypothesis: States the direction of the predicted difference between two conditions or two groups of people in a precise and operationalised way. Also known (for statistical tests) as a one tailed hypothesis. E.g. “Participants who IV (a) will state how the DV will differ compared to participants who IV (b)

Non-Directional Hypothesis: States that there is a predicted difference between two conditions or two groups of people in a precise and operationalised way without stating what that difference will be. Also known (for statistical tests) as a two tailed hypothesis. E.g.“There will be a difference in DV performance between IV (a) and IV (b)