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Statistics (Samples & population (Collecting data (information or date…

- - - - personal interviews: where the interviewer asks prepared questions, and records the replies
      - telephone interviews: interview is conducted over the phone
      - self-administered questionnaires: mailed to individuals, then return it in a pre-paid envelope
- - - - involves recording the behavioral patterns of people, objects and events in a systematic manner
      - data can be collected as a disguised observation
    - - involves using some measuring device to collect data
    - - involves designing a questionnaire to intervew people
    - - data collected are quantitative
    - - used to imitate real-life situations