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Sampling

Beschreibung

Mindmap am Sampling, erstellt von rachbreen am 13/05/2013.
rachbreen
Mindmap von rachbreen, aktualisiert more than 1 year ago
rachbreen
Erstellt von rachbreen vor fast 11 Jahre
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Zusammenfassung der Ressource

Sampling
  1. Opportunity
    1. Whoever happens to go past
      1. Lots of unconscious bias
        1. Attractive
          1. Owe you a favour
        2. People in this sample like to help
        3. Random
          1. Everyone from targer population has same chance of being used
            1. Names in a hat is usual method
            2. Not everyone chosen will want to take part
              1. Have to replace, not as random
            3. Volunteer
              1. Quick and easy
                1. Not typical members of population
                  1. Helpful
                  2. Where ad is placed, get certain type of people
                    1. Students
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