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The GQM – can you see the pattern? Andy Griffiths Dr. Becky Milne University of Portsmouth United Kingdom.

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Presentation on theme: "The GQM – can you see the pattern? Andy Griffiths Dr. Becky Milne University of Portsmouth United Kingdom."— Presentation transcript:

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2 The GQM – can you see the pattern? Andy Griffiths Dr. Becky Milne University of Portsmouth United Kingdom

3 The use of questions Accurate information ‘lifeblood of investigation’ (Stewart, 1985) Negative effect of inappropriate questions established (Loftus &Palmer, 1974) Previous research has ‘scored’ types of questions only Appropriate question strategy is vital

4 Types of question OpenProbing Appropriate yes/no Inappropriate yes/no LeadingMultiple Forced choice Opinion /statement

5 GQM OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion St. Time

6 GQM OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion St. Time Each line allocated to question type e.g. ‘open’

7 GQM OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion St. Time Top 3 lines are appropriate questions Bottom 5 lines are inappropriate questions

8 GQM OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion St. Time As each question is asked it is plotted onto the correct line building the ‘question map’

9 GQM – ASSAULT (SUSPECT) OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Time

10 GQM – ASSAULT (SUSPECT) OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Time 121 questions = 45 minute interview, majority ‘probing’ (3>1)

11 GQM – ASSAULT (SUSPECT) OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Time Sequence - open, probe (3), app closed, probe, open, probe(3) etc

12 GQM – ASSAULT (SUSPECT) OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Time Majority productive but 27 ‘inappropriate closed’= training need

13 GQM – MURDER 1 (SUSPECT)TimeOpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt

14 GQM – MURDER 1 (SUSPECT)TimeOpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Question ratio 2>1 (probing /open)

15 GQM – MURDER 1 (SUSPECT)TimeOpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt No inappropriate questions

16 GQM – MURDER 1 (SUSPECT)TimeOpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Sequence - open, probing, app closed, probing(3), open, probing(3), open etc

17 GQM – MURDER 2TimeOpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Topic – open, probe, app closed, probe, app closed, probe(6), app closed, probe(3) etc

18 GQM – MURDER 2TimeOpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Topic question ratio 13>1 (probing/open)

19 GQM – CHILD ABUSE SUSPECT OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt

20 GQM – CHILD ABUSE SUSPECT OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Question ratio - 3>1 probing/open but 3>1 leading/open and 71/121 inappropriate

21 GQM – CHILD ABUSE SUSPECT OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Random pattern

22 GQM – CHILD ABUSE SUSPECT OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt Accuses suspect

23 GQM – CHILD ABUSE SUSPECT OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt ‘I’ve interviewed this girl and she’s telling the truth’

24 GQM – CHILD ABUSE SUSPECT OpenProbingApp.ClosedInapp.ClosedLeadingMultiple Forced choice Opinion Stmt /11 open questions after accusing the suspect

25 Conclusions Scoring of question type frequency is a very basic method of evaluation

26 Conclusions Context of questions is more informative than an isolated definition of one question

27 Conclusions Scoring of question type frequency is a very basic method of evaluation Context of questions is more informative than an isolated definition of one question Context of questions is more relevant than the number of any one question type

28 Conclusions Scoring of question type frequency is a very basic method of evaluation Context of questions is more informative than an isolated definition of one question Context of questions is more relevant than the number of any one question type The GQM identifies patterns of questions associated with both productive and unproductive interviews The GQM identifies patterns of questions associated with both productive and unproductive interviews

29 The GQM – can you see the pattern? Contact details -


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