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  1. Hello:

    First of all thank you for uploading those reources for all of us to use. Secondly I’d like to ask you if there is a Teacher’s guide or possible responses to the sampling techniques exercise. I have found some difficulty finding the sampling techniques of some experiments and agreeing on the techniques used in the examples proposed.

    Is it possible ot find such a guide?

    Thank you

    1. Hi, Enrique. Glad you find the resources useful. Assuming I’m looking at the same resource as you, I’d suggest the following answers:

      Asch – 123 male college students aged 17-25. Opportunity sample (the PPs were recruited by the confederates); target population was male students (presumably).
      Milgram – 40 males aged 20-50, variety of occupational backgrounds. Volunteer sample (they answered a newpaper ad or a letter of direct solicitation); target population was US Males.
      Shaffer & Emerson – 60 normally developing infants (31 male, 29 female), families mainly working class. Opportunity sample (recruited via local maternity unit); target population was Scottish infants.
      Hazan & Shaver – 620 people aged 14-82 (205 male, 415 female), range of occupational, social and occupational backgrounds. Volunteer sample (responded to magazine ad); target population US adults.

      Follow up exercise:

      Opportunity sample – unlikely to be representative.
      Opportunity sample – unlikely to be representative.
      Random sample – representative of A – Level students; unlikely to be representative of any wider population.
      Impossible to say from the info given, but sample is small and from a specific population so wider generality likely to be limited.
      Impossible to say from the info given but unrepresentative of British people generally.

      Hope that helps.

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