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by Stanley L. Brodsky, Michael P. Griffin

Comments 4 | Rating

When Jurors Nod

 

by Stanley L. Brodsky and Michael P. Griffin

 

 

 

The attention of attorneys and witnesses alike is captured is when jurors nod their heads. When attorneys speak or witnesses testify, often there are individuals on the jury who nod their heads up and down, some jurors nodding rapidly and vigorously and some with a barely visible movement of the head. In our own experiences on the stand, jurors who nod as we testify appear to be affirming the worth of what we are saying and, sometimes voluntarily, we find ourselves maintaining eye contact with the nodding jurors as we speak.

 

 

New psychotherapists are routinely taught to nod their heads, as a sign of affirmation and acknowledgment of clients' thoughts and feelings (O'Brien & Holborn, 1979). At conferences, members of an audience agreeing with a speaker may be seen moving their heads up and down in shared open patterns of acknowledgment. Indeed, head nodding is seen in western cultures as a nonverbal expression of approval or level of agreement (Feldman, 1985; Helweg-Larsen, Cunningham, Carrico, & Pergram, 2004).

 

One older study reported that research participants who nodded their heads while listening approved more of the message than those who remained still (Wells and Petty, 1980). Various scholars, such as Harper, Wiens and Matarazzo (1978), Malandro, Barker & Barker (1991) and Richmond & McCroskey (2004), have placed the head nod under the general rubric of gestures, and within that grouping, head nods are described as complex in form, cultural in meaning, and contextual in interpretation. Richmond and McCroskey identified two categories of gestures into which the head nod may be placed. The first simply communicates, "you are being heard" and the second category is an expression of positive and affirming emotions.

 

Axtell (1998) reported cultural exceptions to the common understanding that nodding the head up and down indicates yes and side to side indicates no. Brodsky (1987) described the cultural equivalent of the affirmative head nod in south India as taking the form of the head-shake from side to side or sideways and up and down in a shallow figure eight.

 

Induced head nodding has even been reported to produce positive thoughts towards a neutral object. Participants who stared at a pen while nodding their heads had a more positive attitude about the pen than participants who shook their heads sideways (Tom, Petterson, Lau, Burton, & Cook, 1991). The explanation provided by the authors for the increase of positive thoughts is that head nodding influences an individual's judgments while an overall opinion is being formed. Incorporating nonverbal cues of agreement, such as nodding, increases positive thoughts about an issue.

 

One frame of reference is that head nods may be understood as self-validating behaviors. In a series of studies, Brinol and Petty (2003) reported that ". . . one's head movements can serve as an internal rather than external cue to the validity of one's thoughts, and thereby provide an alternative mechanism by which head movements can affect persuasion" (p. 1124). They found that nodding increased confidence about whatever one is thinking if the message was strong but decreased confidence when the message was weak.

 

Brinol and Petty told undergraduate psychology students that they were testing how well stereo headphones performed on sound quality and comfort. Half of the subjects moved their heads up and down (as instructed) about once a second, supposedly to test the headphones, while the other subjects moved their heads from side to side. The critical independent variable was either a strong message or weak message arguing that student identification cards should be required for admission to classes, the library, and other facilities. Head-nodding students had more favorable responses to the strong message, and head-shaking students had more negative ratings of the weak message.

 

In our own research, we investigated whether head nodding versus stationary head positions on the part of mock jurors would influence the persuasiveness of expert witness testimony. Positive results for the nodding would provide expert witnesses and attorneys with a tool in interpreting how well their arguments are received by a jury.

 

We drew on 244 undergraduate students from Introductory Psychology courses at a large state university, with 53% of them female and 77% White and 16% African American. A 20-item witness credibility scale (Brodsky, Griffin and Cramer, In Press) with high reliability (alpha = .95) was used to test the results.

 

Our mock jurors in the nodding condition were instructed to move their heads up and down at the rate of about once per second while watching and listening to a video of an expert witness testifying. Participants in the control condition were instructed to refrain from moving their heads and were monitored to insure they did so. The text of the witness testimony was drawn verbatim from the Krauss & Sales (2000) study of the impact of actuarial and clinical testimony about dangerousness. The testimony began as follows:

 

 

"Defense: Good morning. I have several questions for you. Dr. Hoffman, are you absolutely sure that Steven Jones represents a continuing danger to society?"

 

"Expert: I'm reasonably sure. In my field you can never be 100% sure but I've seen enough psychopaths like Mr. Jones to know that he will continue to present a danger to society."

 

There was an overall effect of head nodding on judgments of credibility and on agreement with the expert's testimony (F (3, 245) = 3.71, p = .012). The mock jurors who were instructed to nod rated the expert testifying as being more credible than did the control jurors (t (247) = 1.996, p < .05). 'Agreement with expert' as a dependent variable was also examined. Participant agreement with the testimony based on whether they nodded their heads or did not was not significant (t (247) = 1.15, p > .05).

 

This study is a first step towards investigating the impact of head nodding in the courtroom. We found that juror assignments of expert credibility followed nodding, meaning jurors asked to nod during testimony rated an expert as more credible compared with jurors who did not nod during testimony. However, we did not investigate whether nodding follows credibility. Every attorney, every judge, and many witnesses have observed various ways jurors nod their heads during attorney arguments and during testimony. Multiple meanings are possible; Axtell (1998) points out that "nodding and shaking the head mean different things to different people" (p. 65).

 

 

From our own observations, at least four interpretations are possible in the United States context when jurors nod their heads.

 

1.The jurors are expressing agreement with the statements or testimony.

 

2.The jurors are indicating they are attending to the nature of the communication.

 

3.The jurors are indicating they are cognitively and personally present, much as school children say "here" or "present" when their names are called. In these instances, no particular attitude is present. Some people nod their heads absentmindedly in conversations even though they are daydreaming and devote only partial attention to what is being said.

 

4.Head-nodding jurors are expressing habitual patterns of nodding, fully apart from agreement, approval, attending, or signaling. Just as people may automatically intersperse their verbal statements with words such as "like" and "you know," some people also have well-established habits of nodding their heads. This category of head nodding does not lend itself to any particular interpretation, and does not necessarily reflect even the expression of attention.

 

These four categories of head nods should caution us not to assign approval meanings automatically to juror head nods. Nevertheless, our strong and significant results about credibility serve to signal that juror nodding is an important behavior to which witnesses should indeed attend.

 

In the future we plan research to examine contrasting effects of head nodding and head shaking. Further, we are aiming at using live testimony because it may have a stronger effect than videotaped testimony in its direct attempt to engage the participants. During live testimony reciprocal eye-contact can be made with the mock jurors. In any case jury consultants and attorneys would be well advised to consider head nodding both with promise and caution as a source of information about whether a juror is predisposed to accept their side of the case more than the opposing argument.


 

Stanley L. Brodsky, Ph.D. (sbrodsky@bama.ua.edu) is a Professor in the Department of Psychology, at The University of Alabama, Tuscaloosa, Alabama. He also maintains a private practice in Trial Consultation and Forensic Psychology. He is author of over 200 articles and chapters and 12 books, including his 2009 book Principles and Practice of Trial Consultation.


Michael P. Griffin, Ph.D. [Michael@griffinpsychology.com] is a trial consultant based in Tuscaloosa, Alabama. He also conducts psychological evaluations for the court through his position at Taylor Hardin Secure Medical Facility. His trial consultation work focuses on case conceptualization, jury selection, witness preparation, and the development of electronic trial presentations. You can read more about Dr. Griffin at his webpage [www.griffinpsychology.com].

 

References

 

Axtell, R.E. (1998). Gestures: The do's and taboos of body language around the world. Revised and expanded edition. New York: Wiley.

 

Brinol, P. and Petty, R.E. (2003). Overt head movements and persuasion: A self-validation analysis. Journal of Personality and Social Psychology, 84, 1123-1139.

 

Brodsky, S.L. (1987). Shake your head "Yes:" A cross-cultural note on nonverbal communication. The Clinical Psychologist, 40 , 15.

 

Brodsky, S.L., Griffin, M.P. and Cramer, R.J. (In Press). The witness credibility scale: An outcome measure for expert witness research. Behavioral Sciences & The Law.  

 

Harper, R.G., Wiens, A.N. and Matarazzo, J.D. (1978). Nonverbal communication: The state of the art. New York: John Wiley.

 

Helweg-Larsen, M., Cunningham, S.J., Carrico, A., & Pergram, A.M. (2004). To nod or not to nod: An observational study of nonverbal communication and status in female and male college students. Psychology of Women Quarterly, 28, 358-361.

 

Krauss, D A. & Sales, B.D. (2001). The effects of clinical and scientific expert testimony on juror decision making in capital sentencing. Psychology, Public Policy, and Law, 7, 267-310.

 

Malandro, L.A., Barker, L., & Barker, D. (1991). Nonverbal Communication. 2nd Ed. New York: Random House.

 

Richmond, V.P. and McCroskey, J.C. (2004). Nonverbal behavior in interpersonal relations, Fifth Edition. Boston: Allyn and Bacon.

 

Tom, G., Pettersen, P., Lau, T., Burton, T., & Cook, J. (1991). The role of overt head movement in the formation of affect, Basic and Applied Social Psychology, 12, 281 - 289.

 

Wells, G.L., & Petty, R.E. (1980). The effects of overt head movements on persuasion: Compatibility and incompatibility of responses. Basic and Applied Social Psychology, 1, 219-230.

 

Citation for this article: The Jury Expert, 21(6), 38-40.

 



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Kathy Kellermann wrote:
Oct-24-2010
I am intrigued by this study and yet my practical experience questions the conclusion of being attentive to jurors' head nods.

The courtroom is a specialized forum for jurors that is mostly unfamiliar, where the atmosphere is formal and rule-governed, and where they often feel a bit uncomfortable. Such formal and unfamiliar situations often lead people to engage "politeness behaviors," including head nodding and smiling. These socially appropriate responses can even "cover" for negative ...[More]

martin g wrote:
Nov-26-2009
Interesting - but, with the greatest respect - you've missed one . . .

Details here

http://www.reallymagazine.com/month_archive_72.htm#26NOV09


E Oliver wrote:
Nov-24-2009
The design seems much akin to holding a treat just over a dog's head until he must sit to reach it, and then reporting on the sitting as if there were no treat. Also, there are at least 2 more well-established categories of nods missing: self-referenced agreeing that the lawyer speaking is totally wrong, and unconscious acknowledgment of another's presence completely free from the spoken content. Happy Thanksgiving!

Jason Barnes wrote:
Nov-19-2009
I don't have the research handy, but I remember reading about the phenomenon of "mirror neurons" which drive us to unconsciously mirror the emotional state of those we see ("monkey see - monkey feel'). Taken together with the idea that facial expressions and other motor functions are often the forerunners of emotions rather than the other way around (first you smile, then you feel happy), brings me to the question of whether an advocate or a witness should preemptively nod to the jury. Can the p ...[More]

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The Jury Expert [ISSN: 1943-2208] is published bimonthly by the:
American Society of Trial Consultants
1941 Greenspring Drive
Timonium, MD 21093
Phone: (410) 560-7949
Fax: (410) 560-2563
http://www.astcweb.org/

Editors of The Jury Expert
Rita R. Handrich, PhD — Editor

Kevin R. Boully, PhD — Associate Editor
 

The Jury Expert logo was designed in 2008 by:
Vince Plunkett of Persuasium Consulting

The publisher of The Jury Expert is not engaged in rendering legal, accounting, or other professional service. The accuracy of the content of articles included in The Jury Expert is the sole responsibility of the authors, not of the publication. The publisher makes no warranty regarding the accuracy, integrity, or continued validity of the facts, allegations or legal authorities contained in any public record documents provided herein. Authors retain copyright of their written work. Author supplied graphics which illustrate technology or design ideas are considered the intellectual property of those authors. The Jury Expert itself is copyrighted by the American Society of Trial Consultants (ASTC).