Types of data

• What is quantitative data


  Numerical data
• What is qualitative data 


  non- numerical data expressed in words
• What is a strength of quantitative data 


  Easier to analyse
• What is a strength of qualitative data

  Represents complexities- more detail
• What is a limitation of quantitative data 


  Oversimplifies behaviour
• What is a limitation of qualitative data


  Less easy to analyse
• What is primary data


  -first hand data collected for the purpose of the investigation
• What is secondary data 


  -data collected by someone other than the person conducting the research
• What is meta-analysis


  -A type of secondary data that involves combining data from a large number of studies
• What is a strength of primary data


  Specific to study-directly relevant to research aims
• What is a limitation of primary data

  Requires time and effort
• What is a strength of secondary data

  Inexpensive-requires minimal effort
• What is a limitation of secondary data

  Quality may be poor- challenges validity of the conclusions
• What is a strength of meta-analysis

  increases validity of conclusions -increases extent to which generalisations can be made
• What is a limitation of meta-analysis


  Publication bias- researchers may leave out negative or non significant results