Psychology Hypotheses Quiz

What is a hypothesis?

• A general prediction to say there will be a difference

• A statement to say there will be no difference found

• A precise, testable prediction of what is expected to happen

• An exact prediction about which way the results will go

Students who consume caffeine will be significantly more talkative than students who _________________

Students who consume caffeine will be __________________ talkative than students who do not consume caffeine

In a non-directional hypothesis: There will be a __________ in the number of accurately recalled details for witnesses to a crime who were given the cognitive police interview compared to those who were given the standard police interview.

The features of a hypothesis are:

• it is a statement

• It has the word 'significant/ly' in it

• All conditions are named

• The DV is identified

The purpose of writing a hypothesis is...

• To establish the controls used in a study

• To outline the study and its conditions

• To enable testing of theories as part of the scientific process

• To state clearly the expected relationship between two variables

What is a directional hypothesis?

• A general prediction to say there will be a difference

• An exact prediction about which way the results will go

• A statement to say there will be no difference found

• A prediction based on previous research

When do you use a non-directional hypothesis?

• When there is previous research supporting a specific direction

• When there is no evidence to support a direction or previous studies are contradictory

• When you want to make an exact prediction about the results

• When you want to test for a relationship between two groups

What is the purpose of a null hypothesis?

• To make an exact prediction about the results

• To state that there will be no difference found

• To test for a difference between two groups

• To predict the direction of the results

What type of test is used with a directional hypothesis?

• One-tailed test

• Two-tailed test

• Correlation test

• Experiment test