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Pivot Thinking PIVOT THINKING AND THE DIFFERENTIAL SHARING OF INFORMATION WITHIN NEW PRODUCT DEVELOPMENT TEAMS A DISSERTATION SUBMITTED TO THE DEPARTMENT OF MECHANICAL ENGINEERING AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Mark Schar August 2011 © 2011 by Mark F Schar. All Rights Reserved. Re-distributed by Stanford University under license with the author. This work is licensed under a Creative Commons Attribution- Noncommercial 3.0 United States License. http://creativecommons.org/licenses/by-nc/3.0/us/ This dissertation is online at: http://purl.stanford.edu/dz361xm2614 ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Larry Leifer, Primary Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Pamela Hinds I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Richard Shavelson Approved for the Stanford University Committee on Graduate Studies. Patricia J. Gumport, Vice Provost Graduate Education This signature page was generated electronically upon submission of this dissertation in electronic format. An original signed hard copy of the signature page is on file in University Archives. iii ABSTRACT Functionally diverse team members bring unique sets of cognitive styles to team interaction; it is less clear how these differences affect the exchange of critical, mutually required team information. This cognitive diversity in new product design (NPD) teams increases the likelihood that individual team members will perceive the team’s task differently, leading to “cognitive representational gaps” between teammates’ interpretations of both the task and potential solution. This research shows that cognitively diverse NPD teams develop representational gaps based on individual cognitive preferences between convergent and divergent information types and these cognitive preferences influence both task definition and solution. A second experiment shows that team leadership that bridges cognitive preferences, called “pivot thinking,” can overcome this limiting behavior. Understanding these general mechanisms deepens understanding of group information processing and conflict in cognitively diverse NPD teams. Implications for design education are discussed. iv ACKNOWLEDGEMENTS It may seem odd to begin the process of recognizing important contributors to this journey by honoring an institution - Stanford University. However, I am most grateful to Stanford for giving me this opportunity to reengage with the academic process and open a new chapter in my life. I was first admitted to Stanford in 1971 and for reasons that seemed compelling at the time chose not to attend. Life rarely affords second chances, but in this case it did. A great institution is only great because of the people that make it great and there is no better example of this than my dissertation committee. At the top of the list is my principal advisor, Larry Leifer, who wholeheartedly embraced my interests, assisted my navigation of the institutional pathways and helped me to see that ambiguity can be your friend. Rich Shavelson has been an inspiration v from the moment we first talked and he helped me articulate my interest in human cognitive abilities with very practical advice on how to succeed in academia. Pamela Hinds showed me what it takes to be an excellent scholar, provided a helpful bridge between my business experiences and the world of academics, all delivered in one of the most difficult three credit courses I experienced at Stanford. Jeremy Sabol started my journey five years ago through his inspirational teaching of philosophy and has been a friend and cheerleader throughout this entire process. Finally, Bob Johansen, my friend for the past 20 years, is an intellectual mentor, and sets my standard for thoughtfulness and reflection in all things. New friends, my fellow graduate students, Micah Lande, Jon Shemwell, Tamara Carleton and Bill Cockayne, made this experience possible. They provided both “hands-on” practical advice and much needed emotional support along the way. And old friends, like Harry Kangis, John Lilly, Mike Griffith, Greg Emmer and Barbara Frerichs, began this conversation with “you're doing what?” and ended up being a positive source of personal energy throughout this process. Finally, I'd like to thank my immediate family: my son Tom, who is so full of energy, ambition and a sense of accomplishment that it rubs off on everyone else, including me; my son John, who has patiently showed me that thinking differently about problems is part of the human experience and often leads to both unsuspected and spectacular results; and my amazing spouse, Elizabeth, who has been unfailingly supportive in this journey, a reliable sounding board, an effective coach, and the best life partner imaginable. vi TABLE OF CONTENTS !"#$%!&$' ()! !&*+,-./01/2/+$#' )! .3#$',4'$!"./#' (5! .3#$',4'4316%/#' 5(! &7!8$/%'9':'3;;<)=>(<;'(?'='$@=A'#B<C>' 9! +80'$@=A?D'$E@'F@;@G(>'=;H'IJC?@'<G'4J;I>(<;=K'#B@I(=K(L=>(<;' M! #E=C@H'2@;>=K'2<H@K?'=;H'%@BC@?@;>=>(<;=K'1=B?' N! &<O;(>()@'#>PK@D'2@>=Q$PB@?''R'&<;)@CO@;>'=;H'0()@CO@;>' S! 0(GG@C@;>(=K'3;G<CA=>(<;'#E=C(;OD'&<;I@B>J=K'2<H@K'=;H'7PB<>E@?@?' 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Z_! /5B@C(A@;>'cM'Q'#E=AB<<'8C<><>PB@'0(?IJ??(<;' 9\\! 3;G<CA=>(<;'3>@A'd=K(H=>(<;' 9\[! %@?JK>?D'&<;)@CO@;>'=;H'0()@CO@;>'8C<FK@A'#<K)(;O'1C<JB?' 9\N! %@?JK>?D'8()<>'$E(;U@C?' 99[! &=?@'#>JHP'$E@<CPD'8()<>'$E(;U@C'3;GK@I>(<;'8<(;>?' 99S! %@?JK>?D'1C<JB'4=A(K(=C(>P'=;H'#=>(?G=I>(<;' 9MM! 0(?IJ??(<;' 9M`! &7!8$/%'N'Q'8()<>'$E(;U(;O'=;H'>E@'!C>'<G'1<<H'WJ@?>(<;?' 9M_! &<;>C(FJ>(<;'><'1C<JB'$E@<CP' 9MT! !BBK(I=>(<;'><'0@?(O;'$E(;U(;O' 9[\! 4J>JC@'%@?@=CIE',BB<C>J;(>(@?' 9[9! .(A(>=>(<;?' 9[[! 4(;=KKPX'>E@'!C>'<G'!?U(;O'1<<H'WJ@?>(<;?' 9[`! !'1<<H'WJ@?>(<;'Q'0@G(;@H' 9[S! !BB@;H(5'!':'%<K@'8K=P'3;?>CJI>(<;?'=;H'1C<JB'#=>(?G=I>(<;'2@=?JC@?' 9[_! !BB@;H(5'"':'#E<@'0@?(O;'0(?IJ??(<;'#JFb@I>'%<K@'0@?IC(B>(<;?' 9[Z! !BB@;H(5'&':'#E<@'0@?(O;'3>@A'd=K(H=>(<;'=;H'0(?>C(FJ>(<;' 9`\! !BB@;H(5'0':'#E<@'0@?(O;'3>@A'%=>(;O' 9`9! !BB@;H(5'/':'#E=AB<<'8C<><>PB@'#JFb@I>'%<K@'0@?IC(B>(<;' 9`M! !BB@;H(5'4':'#E=AB<<'8C<><>PB@'&<AA<;'=;H'6;(eJ@'3>@A',)@C)(@V' 9``! .(?>'<G'%@G@C@;I@?' 9`N! viii LIST OF TABLES Table 1 - HBDI Scores by Occupation 63! Table 2 - Research Sample Demographics 66! Table 3 - HBDI Mean Scores by Subject Group 68! Table 4 - Psychometric Measures Correlation 69! Table 5 - Factor Analysis: Convergent and Divergent Participants 70! Table 6 - Factor Analysis: Pivot Thinkers 71! Table 7 - Item Sharing and Importance Rating by Cognitive Style Group 80! Table 8 - Item Sharing and Importance Rating by Work Experience 82! Table 9 - Item Sharing and Importance by Experience and Cognitive Style 83! Table 10 - GLM Test Between-Subject Effects comparing the mean Total Information Items shared by cognitive type (convergent, divergent or pivot) and work experience. 86! Table 11 - Temporal Sharing by Cognitive Style Group 87! Table 12 - Further Development by Cognitive Style and Experience 89! Table 13 - Further Development Decision Correlation Analysis 90! Table 14 - Impact of Pivot Thinker on Shoe Design Discussion 91! Table 15 - Pivot Thinker and Balance Group Item Sharing 92! Table 16 - Shampoo Prototype Information Item Validation 104! ix Table 17 - Team Answer and Information Sharing by Group 105! Table 18 - Decision Timing by Group 107! Table 19 - Group Decision Process by Group Type 109! Table 20 - Unique Information Items Shared by Group 111! Table 21 - GLM Test Between-Participants Effects comparing the likelihood of a subject sharing Unique Information by cognitive type (convergent or divergent) within groups without and with a Pivot Thinking Leader.
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