Types of Questionnaires

• Closed questionnaire 


  involve a simple yes or no answer

  produces quantitative data

  +data is easily analysed and data can be easily counted.

  -may lack realism due to forced choice of answers and may not reflect real life answer that they would have given.
• Open questionnaire 


  gave more detail to the answers and express opinions.

  Qualitative data is produced

  +produces qualitative data which produces more information for the researcher so higher validity and accurate data.

  -answers can be more difficult to analyse and have a subjective way of analysing.
• Likert scale 


  type of closed question but offer more options for PP to choose from when agreeing or disagreeing with statement.

  +quantatitive data is easier to analyse and gives more options for PP.

  -lacks realism as PP can only choose from what is given in questionnaire.