Sharpen Your Vision with a Quick Challenge
Try to find 5 differences hidden in the picture in just 12 seconds! Vision is one of our most important senses, yet we often neglect to train it. Constantly paying attention to detail helps in many aspects of our lives. Therefore, doing exercises that enhance your detail-spotting skills can sharpen your eye.

Understanding IQ Tests
An IQ test, or Intelligence Quotient test, measures human intelligence. Alfred Binet, a French psychologist, introduced the term “IQ” in the early 20th century. IQ tests provide a numerical representation of a person’s cognitive abilities compared to others in their age group.

Assessing Cognitive Skills
IQ tests assess skills like reasoning, problem-solving, memory, and mathematical ability. They aim to measure innate intelligence rather than knowledge from education or experience. Common IQ tests include the Wechsler Adult Intelligence Scale (WAIS) and the Stanford-Binet Intelligence Scales. These tests typically produce a single score, the IQ score, normalized to a mean of 100 and a standard deviation of 15.

Interpreting IQ Scores
A score of 100 is considered average. Scores above or below 100 indicate above-average or below-average intelligence, respectively. While IQ tests are widely recognized, they face criticism. Some argue they don’t capture the full range of human intelligence or that cultural biases affect results.

Limitations of IQ Scores
It’s important to note that IQ scores measure only one aspect of cognitive abilities. They don’t encompass other crucial aspects of human capabilities like creativity, emotional intelligence, or practical skills.