hypothesis

• what is a hypothesis?

  A precise and testable statement about the words specifically about the relationship between data to be measured

  It is a statement about populations an not samples
• what is an experimental/alternative hypothesis?

  There will be a difference in the dependent variable between the independent variable conditions
• what is a null hypothesis?

  there won’t be a difference in the dependent variable between the independent variable conditions
• what are the two types of experimental/alternative hypothesis?

  Directional

  Non-directional
• what is the directional (one tailed) hypothesis?

  States the kind of difference or relationship between two conditions or two groups of participants
• what is a non-directional (two tailed) hypothesis?

  Simply predict that there will be a difference or relationship between two conditions or two groups of participants but does not say which way
• what is the formula for writing a directional experimental/alternative hypothesis?

  IV condition will perform quicker than IV condition B

  or IV condition B will perform worse/slower than IV condition a
• what is the formula for writing a non-directional experimental /alternative hypothesis?

  significant difference between IV condition and I
• what is an aim?

  A statement of what the researchers intend to find out in a research study it usually starts with the phrase a study to investigate