Presenting QuaNtitative Data

• What do we use bar charts to do?


  compare categories
• What do bar charts use ?


  discontinuous or discrete data eg blood groups
• What MUST you do - bar charts?


  leave spaces between your bars (Showing it is discontinuous data)
• Bar charts - what is on the X-axis?


  the category or the IV
• Bar charts- what is on the Y-axis?

  DV (FREQUENCY./ number of measurement)
• What does a histogram use?


  continuous data eg test scores, heart rate, time taken
• Histogram- what must you do?


  Leave NO SPACES between your bars- Showing it is CONTINUOUS DATA

  Bars should be SAME WIDTH (UNLIKE in maths)
• Histogram- what goes on the x-axis?


  continuous variable
• Histogram- what goes on the Y-axis?


  the frequency
• What do scattergrams show?


  the relationship between 2 co-variables
• What do scattergrams allow?


  The presentation of potential correlations
• Scattergrams - what goes on the axis?


  The co-variables can go on EITHER AXIS
• What do pie-charts show?


  The frequency or proportion of different categories using PERCENTAGES
• What do results tables do?


  summarise the main findings of the data eg the mean, the SD
• Continuous data?


  histogram
• Rules for presenting quaNtitative data?

  1,. CLEAR TITLE showing the IV, DV or 2 covariables

  2. CLEARLY LABELLED AXIS with the operationalised units

  3. ACCURATE PLOTTING of the data, with suitable SCALES