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Deductive Reasoning Practice

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Deductive Reasoning Practice Instructions

Overview

The Deductive Reasoning Practice module trains you to proceed out of general principles to particular conclusions - the appraisal of what must be done in case you are presented with a set of rules or premises. The tests consist of 9 multiple choice questions in each of them and they get harder as you go. It does not have a timer pressure and does not focus on speed, but rather accuracy of reasoning. When completed, your step-by-step results and rationalizations appear in an instant - completely pictorial, accurate, and uninhibited

Question 1.

01:00

1. Vehicles are either to the right or left of other vehicles.
2. Only Dutch vehicles are next to the German car.
3. The bus is two times bigger than the German car.
4. The Dutch bicycle is placed next to the Swedish truck.
5. The motorcycle has the same country of origin as the vehicles next to the German car.
6. The motorcycle is half the size of the German car.

Statement: The motorcycle is Dutch

a. True

b. False

c. Insufficient information

Question 2. Continue with information from question 1

01:00

Statement: The motorcycle is eight times smaller than the bus

a. True

b. False

c. Insufficient information

Question 3. Continue with information from question 1

01:00

Statement: The bicycle is half the size of the motorcycle

a. True

b. False

c. Insufficient information

Question 4.

01:00

An art shop sells art supplies:

- A tube of paint costs $1.50
- A tube of paint covers 2 square feet of canvas
- Canvasses are sold small or large: 1 feet by 1,5 feet or 2 feet by 3 feet.
- The difference in cost of the two canvasses are relative to their size.
- A beginners package discount consisting of one small canvas, one large canvas and four tubes of paint costs $22.
- A beginners package discount is $4 cheaper than buying the art supplies separately.
- Paint is not discounted in a beginners package.

Statement: Both canvasses can be painted with a beginners package

a. True

b. False

c. Insufficient information

Question 5. Continue with information from question 4

01:00

Statement: Total tubes of paint are sold more through beginners packages than through separate sales.

a. True

b. False

c. Insufficient information

Question 6. Continue with information from question 4

01:00

Statement: The cost of a separate large canvas is $14

a. True

b. False

c. Insufficient information

Test Format & Interaction

Question styles:

Categorical syllogisms (e.g., “All A are B; all B are C → ?”)
Conditional logic (“If P then Q” with negation and contraposition)
Ordering & sequencing (ranking or positional deduction)
Binary logic puzzles (truth-tellers vs. liars)
Relational reasoning (comparative clues, e.g., “Taller than”)

Response format:

Four options (A–D); only one conclusion is logically valid.
Each question displays a reasoning table and short verbal scenario.
Selections lock once confirmed ensuring deliberate reasoning.

Adaptive engine:

Starts with single-premise deductions.
Progresses to multi-step and nested logic chains.
Adjusts question complexity using real-time accuracy metrics.

Time guidance:

Untimed. Average completion: 10–15 minutes.
External note-taking recommended for tracking logic chains.

Immediate Scoring & Feedback

Results generate in less than a second:

Total score: e.g., 8/9 | 89% correct conclusions.
Logic-type heatmap:

Syllogistic: 3/3
Conditional: 2/3
Sequencing: 3/3
Interactive feedback

Step-by-step reasoning diagram (premise → inference → conclusion).
Highlights of invalid reasoning (e.g., “Affirming the consequent”).
Explanation of the logical law involved (e.g., modus ponens, transitivity)

Retake Policy

Unlimited attempts with procedurally generated statements and logic trees.
Optional free account tracks improvement trends (e.g., “Conditional reasoning: +14% in 6 days”).
Guest mode deletes all data upon exit.

Scoring Transparency & Psychometric Standards

Scoring is strictly binary; each conclusion is either valid or invalid.
Calibrated via Item Response Theory (2-PL) based on 80,000+ test-takers.
Designed for diagnostic self-assessment; no percentile ranking or certification provided.

What Deductive Reasoning Really Tests

Deductive reasoning measures structured, rule-based logical thinking — the ability to derive necessary truths from given information. It’s about understanding how statements relate and what conclusions are logically inevitable.

It assesses:

Logical consistency and argument validity.
Ability to apply inference rules correctly.
Skill in detecting contradictions and false assumptions.

It predicts success in:

Law and policy analysis (argument structure).
Data analytics (hypothesis validation).
Programming (conditional logic and branching).
Cognitive assessments of critical thinking and IQ.

Question Archetypes (All Featured)

Archetype	Core Challenge	Sample Prompt
Categorical Syllogism	General-to-specific inference	“All squares are shapes. All shapes are colored. → All squares are colored?”
Conditional Logic	Chain-based inference	“If A → B, and B → C, then A → ?”
Sequencing Rules	Positional reasoning	“If John before Lily and Lily before Max, who is last?”
Truth/Lie Logic	Binary contradiction	“If only one speaks truth, who must be lying?”
Relational Comparison	Multi-variable deduction	“A is heavier than B, C lighter than A → Who’s heaviest?”

Why It Matters in the Real World

Critical Thinking Foundation: Improves structured argumentation, vital in debates, coding, and legal reasoning.
Hiring Relevance: Common in aptitude tests used by Deloitte, PwC, and Accenture for analytical roles.
IQ Correlation: Correlates (r = 0.71) with verbal and abstract logical subtests.
Decision Quality: Enhances reasoning transparency and bias control in high-stakes decisions.

Evidence-Based Mastery Path

Stage	Focus	Daily Drill (8–10 min)
1. Premise Familiarity	Understand logical statements	Read 3 syllogisms → restate them in your own words
2. Rule Application	Apply basic inference rules	Solve 3 “If–Then” problems → diagram relationships
3. Multi-Premise Reasoning	Handle multi-layer chains	Map 2 full argument chains → identify valid/invalid
4. Error Spotting	Recognize fallacies	Review 3 flawed arguments → label fallacy type
5. Time Challenge	Fluency & accuracy	Impose 45-sec limit after 85% accuracy sustained

Limitations & Complementary Training

Focuses solely on verbal-logical deduction (no visual reasoning).
No real-world content bias — purely abstract structure.
Best paired with Inductive and Diagrammatic Reasoning modules for complete logical training.

Ready to Prove Your Logic?

Start your Free Deductive Reasoning Practice now — 9 adaptive questions, instant logic walkthroughs, and endless retakes to sharpen your analytical edge.