Hypotheses

• What is an aim?

  General statement about the intended purpose of the study, this is what the researcher wants to find out
• What is a hypothesis?

  A prediction about what will happen in a study it is precise and testable
• What are the two types of alternative hypothesis?

  Directional and nondirectional
• What is directional hypothesis?

  States that the IV will have a specific effect on the DV, i.e. increase or decrease
• What is an nondirectional hypothesis?

  States that the IV will have an effect on the, but the direction is unknown
• What is a null hypothesis?

  Statement which predicts the IV will not affect the DV
• What word is changed for hypothesis for correlations and what is it changed to?

  Difference is replaced with correlation or relationship
• What does a directional hypothesis in a correlation state?

  There will be a specific type of relationship, i.e. positive or negative
• What does a nondirectional hypothesis in correlation state?

  There will be a relationship, but it does not stay if it is positive or negative
• When is the directional hypothesis given?

  When there has been past research
• What is the nondirectional hypothesis given?

  When you are unaware of any past research