{
  "title": "“We discussed it as a team”: why groups often overlook what individual members know",
  "url": "https://shr.swiss/blog/reunion-information-non-partagee-decision-recherche-en",
  "language": "en",
  "datePublished": "2026-10-19",
  "publisher": {
    "name": "SHR — Swiss Human Resources",
    "url": "https://shr.swiss",
    "address": "184 route de Saint-Julien, 1228 Plan-les-Ouates, Suisse"
  },
  "summary": "Bringing the relevant people together is seen as the best guarantee of an informed decision. Research on “hidden profiles” shows that groups mainly discuss what everyone already knows.",
  "section": "Research",
  "topic": "Decision-making",
  "place": {
    "name": "Lausanne",
    "region": "Vaud",
    "country": "CH"
  },
  "keyPoints": [
    {
      "heading": "What the literature establishes",
      "point": "Garold Stasser and William Titus (1985, Journal of Personality and Social Psychology) presented groups with a decision in which the best option became apparent only by pooling information distributed among the members."
    },
    {
      "heading": "The mechanism: shared information has a structural advantage",
      "point": "Information known to everyone simply has a greater chance of being mentioned: several people can bring it up."
    },
    {
      "heading": "The hasty conclusion",
      "point": "It is tempting to conclude that all we need to do is “communicate better” or extend the discussion."
    },
    {
      "heading": "What research on decision-making adds",
      "point": "The problem is not only bringing information to light, but allowing it to count."
    },
    {
      "heading": "The limitations of the evidence",
      "point": "Most of these studies rely on groups formed in a laboratory, often consisting of students, facing tasks for which the correct answer is known in advance."
    },
    {
      "heading": "A practical implication to test in Lausanne",
      "point": "Before the next [decision-making](/formation-prise-de-decision-lausanne) meeting, ask each participant to submit in writing a single piece of information about the topic that they believe only they know, then open the meeting with these contributions before anyone takes a position."
    }
  ],
  "sources": [
    {
      "authors": "Titus",
      "year": "1985",
      "source": "Journal of Personality and Social Psychology"
    },
    {
      "authors": "Stasser",
      "year": "1995",
      "source": "Journal of Personality and Social Psychology"
    },
    {
      "authors": "McLeod",
      "year": "2012",
      "source": "Personality and Social Psychology Review"
    }
  ],
  "wordCount": 505,
  "image": "https://shr.swiss/img/blog-Training-Decision-Making-Lausanne-reunion-information-non-partagee-decision-recherche-en.jpg?v=4",
  "translations": {
    "fr": "https://shr.swiss/blog/reunion-information-non-partagee-decision-recherche",
    "en": "https://shr.swiss/blog/reunion-information-non-partagee-decision-recherche-en",
    "de": "https://shr.swiss/blog/reunion-information-non-partagee-decision-recherche-de",
    "it": "https://shr.swiss/blog/reunion-information-non-partagee-decision-recherche-it"
  },
  "relatedPages": {
    "programme": "https://shr.swiss/formation-prise-de-decision-lausanne",
    "city": "https://shr.swiss/formations-ville/lausanne",
    "blog": "https://shr.swiss/blog"
  },
  "citationPolicy": "Citation autorisée avec mention « SHR — Swiss Human Resources » et lien vers l'article."
}