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Increase IQ | Intelligence Test Scale

At Mind Sparke we believe, just as Alfred Binet believed, that our brain's potential is not fixed and finite. We can improve memory and focus, and increase intelligence with appropriate brain training. Many of our customers have reported a marked IQ increase - in some cases more than 20 points, not by becoming better IQ test takers, but by becoming more intelligent. (Interested in an IQ increase? Learn more...)

Intelligence testing began with Alfred Binet's work to measure the intellectual ability of French schoolchildren. Testing children remained the primary focus of psychologists for some time, and therefore Binet's contemporary William Stern originally defined the Intelligence Quotient or IQ test scale by dividing a child's mental age by his or her chronological age. This IQ test methodology has been modified and updated to apply to the population more broadly, but the concept and practice of using an IQ test scale with a mid-point of 100 persists.

IQ Scale IQ Test Score Distribution Bell Curve Standard Deviation When standardizing an IQ test, psychologists administer the IQ test to a representative sample of the population. Using the sample IQ test results they aim to calibrate the IQ test scoring so as to yield a normal distribution, or "bell curve" (see the figure to the right).

Psychologists and test designers express IQ test scores as a number normalized so that the average IQ test result in an age group is 100. They typically (but not always) standardize an IQ test so that the standard deviation of IQ test scores is 15.

For an IQ test scale with a standard deviation s = 15: About 68% of the population has an IQ test score between 85 and 115. Those within the "normal" range, i.e., less than two standard deviations from the mean, will have an IQ test score between 70 and 130; this accounts for about 95% of the population. An IQ test score below 70 may indicate mental retardation, and an IQ test score above 130 may indicate intellectual giftedness.

For reliability, most officially recognized IQ tests require supervision and must comprise enough questions to reach a reasonably accurate assessment of your IQ test score in short-term memory, verbal knowledge, spatial visualization, and perceptual speed.

From Binet and Simon's first IQ test have sprung many variations. The more sophisticated tests use various subtests with questions aimed at measuring different aspects of intelligence. From these you'll usually get an overall IQ test score as well as subtest IQ test scores. Differences in IQ test subtest scores can indicate your particular processing strengths and weaknesses.

Below you'll find a brief overview of two of the most widely used IQ tests -- the Wechsler IQ test and the Sanford-Binet IQ test. It's important to note that these standard IQ tests aren't particularly good at making accurate measurements of very high intelligence. In the Wechsler IQ test standardization process, for example, the total sample size of about 1,900 subjects would have yielded very few IQ test takers with exceptionally high IQ, making it impossible to generate reliable scoring for this end of the IQ test scale. IQ test designers also explicitly aim to test the middle of the range. Accurate tests of high intelligence require specially targeted IQ tests.

Increase IQ | IQ Test Components

WAIS IQ Test (Wechsler Adult Intelligence Scale-Third Edition)
David Wechsler pioneer of psychometric testingThe Wechsler Adult Intelligence Scale (WAIS IQ Test) (first published in 1955), originated in a revision of the Wechsler-Bellevue IQ test (1939), itself a battery of tests composed from subtests Wechsler conscripted from Yerkes' Army Tests (Yerkes, 1921). The WAIS IQ test measures general intelligence, which Wechsler defined as "The global capacity of a person to act purposefully, to think rationally, and to deal effectively with his/her environment."

WAIS IQ Test Composition Summary: Fourteen subtests -- seven verbal (Information, Comprehension, Arithmetic, Similarities, Vocabulary, Digit Span, and Letter-Number Sequencing), and seven performance (Digit Symbol-Coding, Picture Completion, Block Design, Matrix Reasoning, Picture Arrangement, Symbol Search, and Object Assembly).

Increase IQ | WAIS IQ Test Verbal subtests

WAIS IQ Test | Information
General information (e.g., Who is the prime minister of England?)

WAIS IQ Test | Comprehension
Understanding of abstract social conventions, rules and expressions (e.g., Does "a bird in the hand is worth two in the bush" refer to animal husbandry or opportunity cost?)

WAIS IQ Test | Arithmetic
Ability to perform mental arithmetic (e.g., What's the change from $10 if you buy two cups of coffee for $3.75 each?)

WAIS IQ Test | Similarities
Fluency with abstract verbal reasoning (e.g., Dog is to cat as ball is to '?')

WAIS IQ Test | Vocabulary
Extent of word knowledge (e.g., What is a lute?)

WAIS IQ Test | Digit span
Attention and concentration (e.g., given the sequence of digits '49652', reverse the sequence.)

WAIS IQ Test | Letter-Number Sequencing
Attention and working memory (e.g. Starting with the sequence X6K8L1 put the numbers and letters in numerical and alphabetical order respectively)

WAIS IQ Test | Performance subtests

WAIS IQ Test | Picture Completion
Perceiving visual details (e.g., recognizing similarities and differences between figures)

WAIS IQ Test | Digit Symbol Coding
Visual-motor coordination, motor and mental speed

WAIS IQ Test | Block Design
Spatial perception, visual abstract processing & problem solving

WAIS IQ Test | Matrix Reasoning
Nonverbal abstract problem solving, inductive reasoning, spatial reasoning

WAIS IQ Test | Picture Arrangement
Logical/sequential reasoning, social insight

WAIS IQ Test | Symbol Search
Visual perception, speed

WAIS IQ Test | Object Assembly
Visual analysis, synthesis, and construction

(Optional post-tests include Digit Symbol - Incidental Learning and Digit Symbol - Free Recall.)

Stanford-Binet IQ Test Fifth Edition (2003)
Stanford-Binet IQ Test | Summary: The Stanford-Binet Fifth Edition (2003) tests general intelligence, knowledge, fluid reasoning, quantitative reasoning, visual-spatial processing, and working memory. Ten subtests measure verbal and non-verbal intelligence. Activities include recognition of verbal absurdities, picture absurdities, verbal analogies, form patterns, procedural knowledge, sentence and word memory, position and direction, early reasoning, and quantitative reasoning.

Stanford-Binet IQ Test | Nonverbal

Stanford-Binet IQ Test | Fluid Reasoning
Object Series/Matrices (a point scale used for routing). Includes sequential reasoning and classic matrix items.

Stanford-Binet IQ Test | Knowledge
Procedural Knowledge (an item involving gestures), followed by Picture Absurdities.

Stanford-Binet IQ Test | Quantitative Reasoning
Nonverbal Quantitative Reasoning items, tapping number concepts, problem solving, and figural-geometric / measurement-estimation problems.

Stanford-Binet IQ Test | Visual-Spatial Reasoning
Form Board and Form Patterns (making designs from an expanded set of form-board pieces).

Stanford-Binet IQ Test | Working Memory
Delayed Response (e.g., hiding an object under a cup) at the low levels followed by Block Span.

Stanford-Binet IQ Test | Fluid Reasoning
Early Reasoning items (e.g., picture reasoning) followed by Verbal Absurdities and Verbal Analogies.

Stanford-Binet IQ Test | Knowledge
Vocabulary (a point scale used for routing). Includes toys, identification of body parts, Child Card, and word definitions.

Stanford-Binet IQ Test | Quantitative Reasoning
Quantitative Reasoning items, tapping number concepts, problem solving, and figural-geometric/measurement estimation problems.

Stanford-Binet IQ Test | Visual-Spatial Reasoning
Position and Direction -- verbal-spatial problems requiring explanation of directions, identifying spatial relations in pictures, understanding complex statements of spatial orientation.

Stanford-Binet IQ Test | Working Memory
Memory for Sentences followed by Last Word procedure (requiring memory of the last word of series of questions.

The test takes about 45 to 60 minutes.

IQ Increase | IQ Test Components

Although sophisticated IQ tests aim to test and measure many facets of brain processing, it is remarkable how many of these rely heavily on working memory. Some psychologists have posited that working memory is IQ or provides an equally good measure of intellectual ability. To increase IQ then the goal becomes to improve working memory.

Increase IQ | Brain Training Program

Susanne Jaeggi Martin Buschkuehl Perrig PNAS April 2008 Bern Michigan increase intelligence and brain power by training working memory
Brain Fitness Pro uses the only intelligence training method proven by independent research to increase IQ. Brain training with Brain Fitness Pro will increase IQ scores on any intelligence test and any standardized test or exam for college entry, grad school admission, civil service, armed forces, or professional qualification, such as the SAT, LSAT, GRE, MCAT, GMAT, OQTs, acturial, CPA, and bar exams.

IQ Increase | Research

In 2008, researchers from the Universities of Michigan and Bern published joint, independent research1 showing that an intensive period of brain training with the "dual n-back" working memory exercise could significantly increase intelligence. The study demonstrated a fluid IQ increase for all participants of more than 40% in comparison to a control group who did not train. (The researchers calculated the fluid intelligence increase from the number of correct answers given to a standard set of IQ test questions2.) working memory working memory fluid intelligence

IQ Increase | Science

MindSparke's brain training strengthens attentive focus and working memory reducing the overlapping demands placed on the brain's processing power to increase IQ. MindSparke has evolved and extended the classic dual n-back IQ training protocol, enabling you to increase your IQ even further.

Brain training to increase IQ beats out regular test prep approaches in that the gains reflect an organic IQ increase as a result of gains in raw problem-solving ability; the IQ increase is permanent. You'll take the IQ increase with you into your daily life and any new course of study, position, or vocation.

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Increase IQ Scientists Get Smarter, Share To Learn About IQ

How many scientists does it take to correlate brain power with genetics? Answer: Lots. In the previously stalled scientific inquiry into the relationship between brain functions and genetics the biggest problem had been sample size. But in a highly atypical instance of scientific group-Darwinism over 200 researchers decided to put aside ego and pool research [...]

Increase IQ iq test

Stage: 1 Session number: 2 Average n-back: 4.6 I did a pretest at http://www.gigiassessment.com/ scored 117. MindSparke Brain Training Software This post was submitted by Michelle Salois.

Increase IQ Brain Training Report – Witek – Stage 3, Session 96

Stage: 3 Session number: 96 Average n-back: 6.95 One word: MENSA. Just opened the envelope and still can’t believe it… MindSparke Brain Training Software This post was submitted by Witek.

Increase IQ Brain Training Report – Nik – Stage 4, Session 9

Stage: 4 Session: 9 Average N: 4.8 Focus always needed and its something I lose track off. MindSparke Brain Fitness Software

Increase IQ Brain Training Report – Nik – Stage 4, Session 8

Stage: 4 Session: 8 Average N: 4.8 The simple fact here is to just do it in one go and getting overwhelm is the only way of making progress. MindSparke Brain Fitness Software

1 Increase IQ: "Improving fluid intelligence with training on working memory" Susanne M. Jaeggi, Martin Buschkuehl, John Jonides, and Walter J. Perrig PNAS 10.1073/ pnas.0801268105.
2 IQ Increase measured using the standard Bochumer Matrizen IQ Test: BOMAT-Advanced-Short Version

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Increase IQ | Intelligence Test Resources

Increase IQ | The History of Intelligence Testing
Increase IQ | Intelligence Test Components
Increase IQ | Which IQ Test to Choose
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Increase IQ | Intelligence Training

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