Results 1 to 3 of 3
Like Tree1Thanks
  • 1 Post By HallsofIvy

Thread: Interview questions - preventing contamination

  1. #1
    Newbie
    Joined
    Sep 2017
    From
    UK
    Posts
    2

    Interview questions - preventing contamination

    Hello all,

    Recently, I have encountered math problem which I do not know how to solve. I mean, I understand why the suggested answer is correct, but I need to know how to calculate it by myself. I will be very grateful for straight-forward explanation.
    -------

    You recently attended a workshop on forensic interviewing techniques. The workshop focused on techniques for preventing interviewer contamination, with the goal of eliciting new details during an interview, while avoiding eliciting details that contradicted prior statements. The following table was presented from a field study to illustrate the effect of question types on the responses during interviews.

    The following table was presented from a field study to illustrate the effect of question type on responses during interviews.

    Question types and the production of new and contradictory details:

    Question type Number of questions asked Response: new details Response: contradictory details
    Invitation 56 48 (11%) 0 (0%)
    Directive 93 71 (17%) 19 (21%)
    Option-posing 223 158 (38%) 42 (46%)
    Suggestive 187 144 (34%) 30 (33%)

    Note: Numbers in parentheses are percentages within the columns

    Questions: Based on the information presented, which question type would you recommend to use during the interviews?

    A. Invitation questions
    B. Directive
    C. Option-posing
    D. Suggestive
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    19,455
    Thanks
    2892

    Re: Interview questions - preventing contamination

    It think that depends largely upon who you choose to value "new detail" versus "contradictory details".

    One method would be to treat "contradictory details" as negative new details.

    Then the value of the different methods would be:
    Invitation 11- 0= 11
    Directive 17- 19= -2
    Option-posing 38- 46= -8
    Suggestive 34- 33= 1
    So "Invitation" is best.

    Another might be to treat "contradictory details" as reciprocal new details.

    Then the value of the different methods would be:
    Invitation 11/0= infinity
    Directive 17/19= 0.89
    Option-posing 38/46= 0.83
    Suggestive 34/33= 1.03.

    So either method give "Invitation" as being best.
    Thanks from Mencjusz
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Sep 2017
    From
    UK
    Posts
    2

    Re: Interview questions - preventing contamination

    Yes, "Invitation" is suggested as correct answer. Thank you very much for your help!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 4
    Last Post: Aug 28th 2012, 06:51 AM
  2. Replies: 9
    Last Post: Oct 5th 2011, 02:21 PM
  3. Interview Questions - Help
    Posted in the Advanced Statistics Forum
    Replies: 8
    Last Post: Nov 10th 2009, 06:04 PM
  4. Problem from a job interview
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: Sep 14th 2009, 09:04 PM
  5. Interview questions for Markov Chains and Queuing Theory
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: Apr 3rd 2009, 06:07 AM

/mathhelpforum @mathhelpforum