The Group Effectiveness Model

Definition

A work group's effectiveness cannot be judged by output alone. Schwarz defines three independent criteria a group must satisfy simultaneously: performance (the product or service meets the standards of those who receive or evaluate it), process (the way the group works together maintains or enhances its ability to work together again), and personal (the group experience contributes to members' growth and well-being). These three criteria are produced by three interacting factors — group process, group structure, and group context — that together form the diagnostic model a facilitator uses to see what is determining a group's effectiveness.

In the Book

Chapter 2 opens by comparing a facilitator's mental model of a group to a mechanic's mental model of an engine: without a model of what should be present and how it should interact, you have no way to know what is missing or malfunctioning when a group struggles. Schwarz adapts the model from Hackman (1987) and Sundstrom, De Meuse, and Futrell (1990) and lays it out in Figure 2.1: group context (mission, culture, rewards, information, resources) and group structure (clear goals, membership, roles, norms, time) feed into group process (problem solving, decision making, conflict management, communication, boundary management), which in turn produces the three effectiveness outcomes. The book stresses that the three criteria are interrelated and self-reinforcing in either direction — it walks through a case where poor conflict management erodes trust, which causes members to withhold information, which degrades the group's output, which then damages members' sense of competence, showing how failing one criterion drags down the other two over time.

Why It Matters

Most people judge a group only by whether it delivered — the "performance" criterion alone. This model forces two additional questions into every diagnosis: is the group getting better or worse at working together as a result of how it just did this work, and are the people in the room better or worse off for having gone through it? A team can hit its deadline while quietly destroying its capacity to hit the next one, and a model that only scores the deliverable will never catch that until it's too late. Naming process and structure as the levers that produce all three outcomes also gives a facilitator (or any observer of a group) a place to look — not just a verdict on whether the group succeeded.