The decision-making assessment.

A decision-making assessment measures how a manager actually decides, as behavior rather than as a trait. A decision is a commitment to a chosen course of action among alternatives, and rational decision making is a structured process that relies on facts, clear reasoning, and objectivity rather than reflex or guesswork. Whether a manager runs that process is observable, step by step, which is what makes it measurable.

This page covers what the DECIDERindex™ measures, what the read-out shows, what the multi-rater view adds, and what to do with the result. There is a two-minute self-check below if you want to start with your own last decision.

What the assessment measures

The DECIDERindex™ scores behavior frequency across the seven steps of the DECIDER™ method: define the problem, establish criteria, choose priorities, identify options, decide on the best one, execute the decision, and review the results. Each step gets its own score, plus an overall. It is not a knowledge test. It measures how often the behaviors behind a good decision actually happen, which is a different thing from whether a manager could describe them.

That design choice is the whole point. A manager who scores low on “define the problem” does not need a lecture on problem definition. They need to write a one-sentence description before the next meeting discusses solutions, and the instrument tells them so.

What the multi-rater view adds

The self-report shows how a manager sees their own deciding. The optional multi-rater view invites a supervisor, peers, or direct reports to rate the same behaviors, and once at least three respond, the report surfaces hidden strengths and blind spots. The gap is usually the useful number. A manager who rates themselves high on “execute the decision” while their direct reports rate them low has learned something specific: the decisions are getting made, and then relitigated, and the team has stopped believing a call is final.

What the read-out usually shows

Consider a product director at a software company whose team describes her as decisive. Her DECIDERindex™ scores high on decide and execute and low on define and review. She makes calls fast, on problems framed by whoever reached her first, and never evaluates the process apart from the outcome, so a good result on a badly made decision teaches her nothing. Her action plan is two behaviors: write the one-sentence problem before the first option is discussed, and hold a ten-minute review of the process after each major call, win or lose. Her velocity didn’t change. Her relitigation rate did, because a decision made on a defined problem is harder to reopen.

What to do with the result

Work the lowest step first, on a real decision. In critical thinking training each manager applies the method to a decision they are currently facing and produces a DECIDER™ Report they can take to stakeholders, which is both the practice and the deliverable. Then retake the instrument. The movement per step is the evidence, and the measurement is the proof.

Two numbers outside the instrument tell you whether it worked: how many decisions came back for another meeting this quarter, and how many had a documented owner. Both move when the steps do.

Where to start

Start with the self-check above against your last consequential decision. Then take the DECIDERindex™ with the multi-rater view on, and invite the people who live with your decisions to rate the same seven steps. Where their scores and yours diverge is the step to bring to the course.