Inferential testing -Research methods y2

• What are inferential statistics?

  It uses the data collected from the sample to make inferences (assumptions) about the behaviour of the entire target population
• If its a correlational study?

  The bottom row
• If its an experiment/tested difference?

  Top two rows
• If its and independent groups design - unrelated data?


  Middle row
• If its a Repeated measures design or a Matched pairs design - related data?

  Top row
• If its nominal?

  First column
• If its ordinal?

  Middle column
• If its interval?

  Last column
• Which statistical test is suitable for this study:

  There is a positive correlation between income (£ per year) and IQ score as a standardised test

  explanation:

  -"positive correlation" so its in the bottom rows

  -"between income and IQ score" so its unrelated data - Independent measure design - Its in the middle row

  -"Standardised test" its interval data

  This shows that its Pearson's R