---
title: "What is Critical Reasoning?"
description: "Critical Reasoning is evaluating an argument rather than a claim — naming the assumption it rests on, the evidence that would strengthen or weaken it, and the flaw that makes a plausible conclusion unsound. The material is deliberately unfamiliar, so the score reflects analysis rather than whether the reader already agrees."
canonical: https://www.assessall.com/framework/critical-reasoning
updated: 2026-09-12
source: AssessAll
---

# What is Critical Reasoning?

Critical Reasoning is evaluating an argument rather than a claim — naming the assumption it rests on, the evidence that would strengthen or weaken it, and the flaw that makes a plausible conclusion unsound. The material is deliberately unfamiliar, so the score reflects analysis rather than whether the reader already agrees.

_Aptitude & Cognitive Ability domain, AssessAll Capability Framework. Last reviewed 2026-09-12._

<!-- #levels -->
## What critical reasoning looks like at four levels

- **Developing (0–39)** — Arguments persuade you by tone; assumptions and flaws mostly go unnoticed.
- **Emerging (40–59)** — You spot obvious flaws but subtle assumption gaps and scope shifts still slip past.
- **Strong (60–79)** — You dissect arguments into claim, evidence and assumption, and judge them soundly.
- **Exceptional (80–100)** — You evaluate reasoning with rigour — separating correlation from cause and evidence from assertion instinctively.

<!-- #anti-signals -->
## Signs it is missing

- Rejects a conclusion by disputing the source rather than the inference, which leaves a bad argument from a trusted source untouched.
- Accepts a correlation once a mechanism is attached to it, and does not ask what else moved in the same period.
- Cannot state the single assumption their own recommendation needs to be true.

<!-- #evidence -->
## Evidence to look for

- A recommendation they wrote: ask which one assumption, if false, kills it — and whether that assumption appears anywhere in the document.
- A vendor claim they evaluated — what evidence did they ask for that was not volunteered?
- A decision they argued against and lost: does the objection still hold, and on what grounds rather than on what happened?

<!-- #develop -->
## How to develop it

- For every argument you read, write its conclusion, evidence and the unstated assumption in three lines.
- Practise strengthen/weaken items and always ask: what fact would break this link?
- Learn the common flaw families — sampling, causation, false dilemma, scope shift — and hunt one each day.

<!-- #measured-by -->
## What measures critical reasoning on AssessAll

- [Critical Reasoning & Argument Evaluation](https://www.assessall.com/store/apt-critical-reasoning) — 18 items, about 30 minutes. The core form; 100 seconds an item, deliberately a power format
- [Business Case Analysis](https://www.assessall.com/store/apt-case-analysis) — 14 items, about 30 minutes. Applied to a business case; reports Workplace Judgment too
- [Verbal Reasoning — Professional](https://www.assessall.com/store/apt-verbal-professional) — 20 items, about 22 minutes. Argument evaluation inside a verbal form
- [Commercial Judgment & Market Sense](https://www.assessall.com/store/apt-commercial-judgment) — 16 items, about 26 minutes. Commercial reasoning; reports Workplace Judgment first

<!-- #confused-with -->
## Often confused with Critical Analysis

Critical Analysis is the behavioural competency in the AssessAll Capability Framework — how a person interrogates evidence in their own work, observed over weeks. Critical Reasoning is the aptitude measure — a timed judgement about arguments on unfamiliar material. The first is observed by colleagues; the second is tested. They are different pages because they are different instruments.

---

Source: https://www.assessall.com/framework/critical-reasoning