from Alchemy to Transhumanism volumen 0

General intelligence, often

referred to as the "g factor,"

is a concept in psychology

that was proposed by British

psychologist Charles

Spearman in the early 20 th

century. Spearman's g factor

represents a single, underlying ability or cognitive

trait that influences a person's performance across

a wide range of cognitive tasks. In other words, it is

the idea that there is a general mental ability that

contributes to one's overall intelligence, and this

ability can be measured and quantified.

Here are some key points about Spearman's g

factor:

1. **Single Factor Theory:** Spearman's theory

posits that intelligence is not just a collection of

separate, unrelated abilities (such as mathematical,

verbal, or spatial skills) but is instead influenced by

a single, overarching factor or dimension of mental

ability, which he termed the "g factor" for "general

intelligence."

2. **Hierarchical Model:** Spearman also

proposed a hierarchical model of intelligence.

According to this model, g factor is at the top of the

hierarchy, influencing specific abilities (referred to

as "s factors") below it. These specific abilities are

domain-specific and include skills like verbal,

numerical, and spatial aptitude.

3. **Factor Analysis:** Spearman developed the

statistical technique of factor analysis to support his

theory. Factor analysis is a statistical method used

General intelligence (Spearman's g factor)