CONTENTS 1 THE SCIENCE OF GROUP DYNAMICS ... 1 2 STUDYING GROUPS ... 27 3 THE INDIVIDUAL AND THE GROUP ... 57 C. P. Ellis : From Klan Member to Enlightened Humanitarian ... 58 4 JOINING AND LEAVING GROUPS ... 89 The Impressionists : The Group that Redefined Beauty ... 90 5 STRUCTURE ... 119 Andes Survivors : One Groups Triumph over Extraordinary Adversity ... 120 6 COHESION AND DEVELOPMENT ... 147 Disney Studios : The Team that Walt Built ... 148 7 INFLUENCE ... 173 The Corona Trial Jury : The Group as Arbiter of Justice ... 174 8 POWER ... 207 The Peoples Temple : The Metamorphic Effects of Power ... 208 9 CONFLICT ... 235 Jobs versus Sculley : When Group Members Turn Against Each Other ... 236 10 PERFORMANCE ... 267 The Relay Test Room : Enhancing Productivity Through Teamwork ... 268 11 DECISION MAKING ... 305 Kennedys Advisory Committee : Collective Errors and Disastrous Decisions ... 306 12 LEADERSHIP ... 339 Grace Pastiak of Tellabs, Inc. : Transforming People and Groups Through Leadership ... 340 13 INTERGROUP RELATIONS ... 375 The Rattlers and the Eagles : Group Against Group ... 376 14 THE GROUP ENVIRONMENT ... 409 Sealab : Living and Working in an Extraordinary Group Environment ... 410 15 CROWDS AND COLLECTIVE BEHAVIOR ... 441 The Who Concert Stampede : A Crowd Gone Mad? ... 442 16 GROUPS AND CHANGE ... 471 The Therapy Group : Groups as Interpersonal Resources ... 472