Brouillard, Celine, Gabbert, Fiona and Scott, Adrian J (2025) Development and validation of the Rapport-Pro for investigative information-gathering contexts. Journal of Criminal Psychology. ISSN 2009-3829 (Online) (In Press) (doi:10.1108/JCP-11-2024-0120)

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Abstract

This paper presents the development and validation of a new measure of rapport designed specifically for measuring attempts to build rapport in professional information-gathering contexts. Guided by best practice recommendations and informed by a systematic review, the development of the ‘Rapport-Pro’ followed three initial phases: (i) construct identification and item generation, (ii) pre-testing and face validity assessment, and (iii) expert evaluation and content validity. Following established scale development standards, two online survey studies examined the psychometric properties of the Rapport-Pro considering its accuracy and appropriateness in measuring rapport in professional contexts. Study 1 (n = 172) included the three initial development phases and a Confirmatory Factor Analysis, which supported a second-order model where five rapport components loaded onto a higher-order rapport factor. Item Response Theory analysis further confirmed item discriminability, and the reliability of the Rapport-Pro. Study 2 (n = 399) sought to replicate the findings from Study 1, suggesting good factorial and concurrent validity, whilst also examining the construct validity by assessing the Rapport-Pro’s alignment with related constructs such as ‘active listening’, ‘trust’, and ‘expertise’ through convergent and discriminant validity checks. The successful replication of evidence supporting factorial and concurrent validity from Study 1 attests to the stability and effectiveness of the Rapport-Pro in detecting variations in rapport. With evidence of factorial, construct, face, content, and concurrent validity, the Rapport-Pro addresses theoretical gaps and practical needs, emerging as a robust instrument for assessing professional rapport and enhancing official guidelines, training, and practice of rapport-building strategies.

Item Type:	Article
Uncontrolled Keywords:	assessment, eyewitnesses, rapport, interrogation, investigative interviewing, policing
Subjects:	H Social Sciences > H Social Sciences (General) H Social Sciences > HN Social history and conditions. Social problems. Social reform K Law > K Law (General)
Faculty / School / Research Centre / Research Group:	Faculty of Education, Health & Human Sciences Faculty of Education, Health & Human Sciences > Institute for Lifecourse Development Faculty of Education, Health & Human Sciences > Institute for Lifecourse Development > Centre for Thinking and Learning Faculty of Education, Health & Human Sciences > School of Human Sciences (HUM)
Last Modified:	20 Mar 2025 16:10
URI:	http://gala.gre.ac.uk/id/eprint/50086

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