Fluid intelligence (Gf) is our reasoning and problem solving ability in novel situations. It is highly representative of general intelligence (G).

Definition of Fluid Intelligence (Gf)

Fluid intelligence (Gf) is our reasoning and problem solving ability in new situations. It lies behind the use of

deliberate and controlled mental operations to solve novel problems that cannot be performed automatically. Mental operations often include drawing inferences, concept formation, classification, generating and testing hypothesis, identifying relations, comprehending implications, problem solving, extrapolating, and transforming information. Inductive and deductive reasoning are generally considered the hallmark indicators of Gf. Gf has been linked to cognitive complexity which can be defined as a greater use of a wide and diverse array of elementary cognitive processes during performance.

Dr. Kevin S. McGrew

Tests of Fluid Intelligence

Deductive reasoning, inductive reasoning (Matrices), quantitative reasoning, and speed of reasoning.

Reference

McGrew, K. S. (2009).  Intelligence 37, 1–10.

Gf – Fluid Intelligence Training

Train with  fluid intelligence (Gf) tests & exercises for at least 5 minutes and up 15 minutes in addition to your i3 2G+ training for the day. You can use the tests below selectively for your own training purposes.

Mid-range training

Free demo IQ tests. Free and low cost. Take tests.

Visual Patterns Fluid Intelligence Test. 15 brainteasers. 20 minute time limit. Scoring – Free. Take the test.

Queendom’s Culture Fair IQ Test. Normed. Scoring – Free. Takethe test.

Expand Your Mind training exercises. Do the exercises.

High-range training

Tractatus Logicus 37. By Christoffer Collin. 37 questions. 2 weeks may be required. Normed. Scoring – Free. Take the test.