Back to the Real: Efficacy and Perception of a Modified Cognitive Interview in
the Field
CINDY COLOMB
1,2
*, MAGALI GINET
1,2
, DANIEL WRIGHT
3
, SAMUEL DEMARCHI
4
and
CHRISTOPHE SADLER
5
1
Clermont Université, Université Blaise Pascal, Laboratoire de Psychologie Sociale et Cognitive, Clermont-Ferrand, France
2
CNRS, UMR 6024, Clermont-Ferrand, Cedex, France
3
Department of Psychology, Florida International University, Miami, FL, USA
4
Université Paris 8, Laboratoire Parisien de Psychologie Sociale, Saint-Denis, Cedex, France
5
Brigade territoriale autonome de gendarmerie de Gardanne, Chemin Font-de-Garach, Gardanne, France
Summary: Since the Cognitive Interview (CI) was developed, many experiments have been published, but only two have investigated
its efficacy in real criminal cases. Here, a Modified CI (MCI) is tested with real interviews in an inquisitor justice system. Several
moderators and the interviewers’ attitudes towards the CI/MCI are also examined. Eighty-one witnesses were interviewed by 27
French military police officers, with a Standard Police Interview, a Structured Interview (SI), or an MCI. The MCI produced the
most forensically relevant information, especially for victims. Trainees judged the SI and the MCI useful, usable, and acceptable,
and felt efficient in using them, beliefs that increased after 1 year of practice. The self-efficacy was linked with the declared use
of the techniques. In all, this study confirmed the efficacy of the CI/MCI as a tool to be used in the field, with some cautions to be
underlined, notably because of the small sample size considered. Copyright © 2013 John Wiley & Sons, Ltd.
INTRODUCTION
The Cognitive Interview (CI) is a well-established technique
used to enhance the recollection of eyewitness testimonies.
Created 30 years ago by Geiselman and Fisher (Geiselman,
Fisher, Firstenberg, Hutton, Sullivan, Avetissian, & Prosk,
1984), it can be considered as the most successful scientific
protocol for interviewing eyewitnesses (cf., Conversation
Management, Shepherd, 1988; Memorandum of Good Practice,
Home Office, 1992). The CI has been well-researched and has
undergone several improvements (Memon, Meissner, & Fraser,
2010). Memon et al. (2010) identified 65 experiments on the CI
in 25 years, with modified protocols being currently developed
[Modified CIs (MCIs)]. However, while there is a wealth of
laboratory research, only two studies have tested its efficacy
in the field, and none has been reported for over 15 years
(Fisher, Geiselman, & Amador, 1989; Clifford & George,
1996). The major aim of the current experiment is to assess
the efficacy of an MCI in an inquisitor system, with witnesses/
victims of real crimes and professional interviewers from the
military police. This study also provides the opportunity to
examine several potential moderators of the benefit of the
MCI in the field (i.e., interviewees’ gender, age, and status;
interviewers’ gender, age, and seniority; and type of events),
as well as the police officers’ attitudes towards the technique
(i.e., perceived utility, usability, institutional acceptability,
and self-efficacy).
From the Cognitive Interview to the modified versions: a
historical description
The CI was originally built upon two principles extrapolated
from Tulving’s conception of human memory: (a) mental
re-creation of the context of the crime at the time of retrieval
facilitates memory (i.e., encoding specificity principle, Tulving
& Thomson, 1973), and (b) different mental paths/cues can
lead to the same memory (i.e., varied retrieval, Bower, 1967;
Tulving, 1974). In its initial form, the CI was composed of
four retrieval mnemonics: report everything, mental context
reinstatement, change temporal order, and change perspective.
Then, Fisher and Geiselman (1992; see also Fisher,
Geiselman, Raymond, Jurkevich, & Warhaftig, 1987) proposed
an Enhanced CI (ECI). In addition to the four retrieval tech-
niques, they included several communication components
grounded in research from social and cognitive psychology
and aimed at improving the social dynamics of the interview
(see Fisher, 2011; Fisher & Geiselman, 2010, for recent
descriptions). For instance, with this new procedure that is
interviewee-centered, the interviewer is encouraged to listen
actively and discouraged from interrupting the free recall of
the interviewee, giving the interviewee the control of the
interview. The interviewer must help the interviewee to
answer questions by organizing the interview in a way that
is compatible with the interviewee’s mental record of the
event and by using focused retrieval techniques and mental
images to guide recall. The interviewee is told not to guess
or to fabricate, and told to say ‘I don’t know’ if appropriate.
Recently, MCIs have been developed that omit the change
perspective mnemonic (e.g., Wright & Holliday, 2007) or
omit both the change perspective and the change temporal
order (e.g., Davis, McMahon, & Greenwood, 2005). The
version tested in the current research omits both the change
temporal order and the change perspective instructions. Previous
laboratory research found that these two mnemonics do not
increase the amount of correct details recalled (e.g., Boon &
Noon, 1994; Milne & Bull, 2002; Py, Ginet, Demarchi, &
Ansanay-Alex, 2001) and, therefore, that this shorten version
is as effective (e.g., Bensi, Nori, Gambetti, & Giusberti,
2011; Colomb & Ginet, 2012). Further, research has found
that police officers judge these mnemonics difficult to use
and believe they are less valuable than the other mnemonics
(Clarke & Milne, 2005; Dando, Wilcok, & Milne, 2008;
2009a; Kebbell, Milne & Wagstaff, 1999). Several social
*Correspondence to: Cindy Colomb, LAPSCO/CNRS/UBP-34, Avenue
Carnot, 63037, Clermont-Ferrand, France.
E-mail: cindy.colomb@univ-bpclermont.fr
Copyright © 2013 John Wiley & Sons, Ltd.
Applied Cognitive Psychology, Appl. Cognit. Psychol. 27: 574–583 (2013)
Published online 6 August 2013 in Wiley Online Library (wileyonlinelibrary.com) DOI: 10.1002/acp.2942