Aims and Hypothesis

• Aim


  General statement about intention of research

  Purpose of study
• Hypothesis


  A precise testable statement including levels of independent and dependant variable (Or co-variables for a correlational study)
• Independent variable


  Deliberately changed by experimenter
• Dependent variable


  Measured by researcher
• How to form hypothesis

  [relationship + DV + two levels of IV]
• Alternative hypothesis


  Where a relationship is shown between two variables
• Null hypothesis


  Statement that there is no relationship between variables tested
• Directional hypothesis


  States that there is a difference in dependent variable however not followed by IV
• Directional hypothesis


  States that there is a difference in dependant variable as result of IV and says which direction the results will go
• Example of non-directional hypothesis


  "There is a difference between (DV) in (IV) compared to (IV)"
• Example of directional hypothesis


  "there is an increase of (DV) in (IV) compared to (IV)"