Summary of Experimental Method

Definition: A general statement of what the research wants to investigate.

• Directional Hypothesis

• Aim

• Non-Directional Hypothesis

• Control Group

What does DV stand for?

What is H₀

• Directional Hypothesis

• Non-Directional Hypothesis

• Null Hypothesis

• Independent Variable

Definition: A clear, precise, testable statement that does state the direction of difference or relationship between the investigated variables.

• Directional Hypothesis

• Aim

• Non-Directional Hypothesis

• Control Group

A researcher wants to look at the effect that caffeine has on the equality of sleep.

Group 1: Drinks a coffee before they go to sleep and asked how well they slept.

Group 2: Did not have caffeine before they go to sleep and asked how they slept

Which Group is the Experimental Group

• Group 1

• Group 2

What are the two levels of IV?

• Control Group

• Non-Directional Hypothesis

• Null Hypothesis

• Experimental Group

Definition: A clear, precise, testable statement that does not state a direction of difference, or relationship between the investigated variables.

• Directional Hypothesis

• Aim

• Non-Directional Hypothesis

• Control Group

Is this operationalised?

Measuring heart rate in BPM

• Yes

• No

Definition: Some aspect of the experimental situation that is manipulated by the researcher - or changes naturally - so the effect on the DV can be measured.

• Dependent Variable

• Experimental Group

• Independent Variable

• Control Group

Dependent ________