3.2 Data collection in class

Data of different types can be obtained from your class quickly and easily:

• Numerical discrete:
  • Number of siblings/brothers/sisters
  • Number of Facebook friends
  • Number of unread emails
• Numerical quantitative:
  • Hours of phone usage in the past week/month (often recorded by the phone);
  • Age
  • Time taken to perform some simple task
• Categorical nominal (includes yes/no questions):
  • Country/state born
  • How you came to school today
  • Wear glasses or not
  • Did you eat any vegetables for dinner last night?
• Categorical ordinal (numerical data can be grouped to form ordinal data too):
  • Age group
  • Season in which you were born
  • Answers to survey questions on an ordinal scale (‘How much do you like Justin Bieber’s music?’: A lot; A little; It’s just OK; Hate it)