British psychologist Charles Spearman proposed the existence of g in 1904.
Who developed G theory?
American psychologist Clayton Paul Alderfer developed G theory in the 1960s.
Alderfer took Maslow’s hierarchy and streamlined it into his own ERG theory (Existence, Relatedness, Growth). Here, the “G” stands for growth needs. His 1969 paper in Human Relations put the three-tier model on the map, shaking up the idea that needs fit neatly into separate boxes. Unlike Maslow’s five rigid levels, ERG blends needs together—because in real life, motivation doesn’t always follow a straight line.ScienceDirect
Which theorist proposed the idea of g factor?
Charles Spearman proposed the g factor in 1904.
Spearman didn’t just pull this out of thin air. He crunched test scores from schoolchildren and spotted a pattern: one big underlying factor—g—that explained how well they did across different subjects. He called the smaller, task-specific factors s, like math or verbal reasoning. This wasn’t just academic noodling—it set the stage for modern IQ tests and how we measure intelligence today.Wikipedia
What is G in intelligence?
In intelligence research, G refers to general mental ability.
Think of G as the engine behind your brain’s performance. It’s not a skill you can practice, like memorizing facts, but more like the horsepower that makes different skills run. People who ace one test usually ace others too—because G is that common thread. It’s not perfect, but it’s a useful way to talk about overall cognitive ability.American Psychological Association
What did Charles Spearman believe in?
Charles Spearman believed intelligence is primarily a single general factor (g).
Spearman didn’t see intelligence as a bunch of scattered talents. He thought it was mostly one big, general ability—g—that powered everything from memory to problem-solving. His 1927 book The Abilities of Man made this idea stick, shaping IQ research for generations. In practice, this meant ranking people by a single “mental energy” score—simple, but controversial.Britannica
What is Maslow’s theory?
Maslow’s theory is the hierarchy of needs, a five-tier pyramid of human motivation.
At the base? Survival needs like food and sleep. Then safety, love and belonging, esteem, and finally self-actualization at the top. The idea is you can’t chase higher goals until the basics are covered. Maslow later tweaked the model to add cognitive and transcendence needs—because, honestly, this is the best-known approach to understanding what drives us.Simply Psychology
What is McClelland’s theory?
McClelland’s theory identifies three key motivators: achievement, affiliation, and power.
David McClelland’s 1961 framework says these drives aren’t born into us—they’re learned. High achievers set tough goals and crave feedback; power-driven folks love influence; affiliation types thrive on relationships. It’s a handy tool in workplaces and career coaching, helping people figure out what really lights their fire.Verywell Mind
What are the 12 multiple intelligences?
Howard Gardner’s theory originally proposed 8 intelligences; 12 is a later extension.
Gardner’s 1983 model started with linguistic, logical-mathematical, spatial, musical, bodily-kinesthetic, interpersonal, intrapersonal, and naturalistic smarts. Later, he added existential, moral, and pedagogical intelligences. Critics say it’s light on hard data, but teachers love it because it celebrates different kinds of brilliance.Britannica
Is G-factor real?
G-factor is statistically real but theoretically debated.
Time and again, data shows this g-factor popping up across cultures and eras—so it’s not just a fluke. But what does it actually mean? Some say it’s neural efficiency; others argue it’s just how tests are designed. It’s real enough to measure, but the debate over what it *is* keeps the conversation lively.Psychology Today
Who proposed PASS theory on psychology?
J.P. Das and colleagues proposed PASS theory in the 1990s.
PASS stands for Planning, Attention, Simultaneous, and Successive processes—all based on A.R. Luria’s brain research. Instead of seeing intelligence as fixed traits, this theory treats it like a set of dynamic brain operations. Teachers use it to spot learning struggles and tailor support.Learning Disabilities Association of America
What are the 3 types of intelligence?
Robert Sternberg’s triarchic theory identifies analytical, creative, and practical intelligence.
Analytical is your classic problem-solving; creative is about innovation; practical is “street smarts.” Sternberg’s 1985 book Beyond IQ argued that standard IQ tests miss the creative and practical stuff. It’s a useful reminder that book smarts aren’t everything.Verywell Mind
What does S factor stand for?
S factor stands for “specific factor” in Spearman’s two-factor theory.
While g covers your overall smarts, s factors zoom in on task-specific skills—like vocabulary or arithmetic. They explain why someone might crush a math test but bomb a verbal one. Tests often include s-factor measures to pinpoint strengths and weaknesses.Wikipedia
How do I calculate my mental age?
Mental age is calculated by comparing your test performance to age-group norms.
Say a 30-year-old scores like the average 25-year-old. Their mental age is 25. Today, most tests use standardized IQ scores instead, but the concept still pops up in developmental psychology. You’d need a validated IQ or cognitive test from a professional—no DIY mental age calculators here.Verywell Mind
What did Spearman conclude?
Spearman concluded that general intelligence (g) underlies all cognitive abilities.
His research showed that specific abilities (s) correlate because they share this underlying g. His 1904 paper “General Intelligence” Objectively Determined and Measured introduced factor analysis to psychology, changing how we measure intelligence forever.American Psychological Association
What is Spearman theory?
Spearman’s theory is the two-factor model: g (general intelligence) + s (specific abilities).
Published in 1927, it argued that g explains why people perform consistently across tests, while s factors explain task-specific variability. This framework ruled IQ research for decades and still shapes modern psychometrics.Britannica
