Intelligence Flashcards
Intelligence
The ability to generalize (Memory); flexibly use knowledge (Concepts) to solve new problems (Problem solving)
* Learning from experience and adapt that learning to your environment when making decisions
* Acting purposefully
ChaptGPT solves ______ decision-making and reasoning tasks similarly to humans
Ambiguous
- Maybe chatgpt can reason beyond rules ? but counter to that : we feed Chatgpt all our data, and problems like the Linda one are very famous : it could be pulling from our responses
ChaptGPT can do these tasks
- Automated tasks
- Routine activities
- Create content
- Create Bizarre songs
- Co-create movie with AI
ChatGPT cannot do these tasks
- Editing: Avoid repetition in content
- Write accurate news articles
Provides ‘fake news’ - Cannot provide opinions or advice
- Can’t create original puzzles
IQ tests have been designed to measure general intelligence differences but …
Other factors underlie differences on these tests aside from “intelligence”
Psychometrics
- The study of psychological assessment
Standardization
- Test scores are compared to pre-tested ‘standardization’ or ‘norm’ groups (people that took the test before)
IQ tests scores
- Average score of 100; Standard deviation of 15
- 95% of people within two standard deviations (between 70 and 130)
Highest recorded IQ
- theoretically no limit to IQ scores
Younghoon Kim: IQ of 276 - highest recorded IQ
Reliability
Consistency across instances of testing
* IQ scores have high test-retest reliability
* Score at age 6 correlates with scores at age 18
* But can change with environment and education, which can dampen down the reliability
Validity
The test is measuring what it is intended to measure
IQ scores should have predictive validity :
* Should predict performance on something requiring intelligence
* Yet, low correlations ( r = .5, low to mid) with job performance
* Intelligence will vary across context and culture
Francis Galton (1822 to 1911)
one of first thinkers to suggest intelligence could be measured
* Founded the eugenics movement
* Racially-motivated view of how to “improve” society
* A dark start to intelligence testing
Alfred Binet
Developed a test in response to a request from the French government
* Identify children that needed special education in school
Binet viewed intelligence as as important for:
* Practical life, adapting to circumstances judging and reasoning well
Binet thought his test measured ______, not intelligence
Academic output
Simon-Binet Test
30 questions of increasing difficulty (easy → hard)
* Easy items: Follow a light beam, answered easily by young children
* Difficult items: Describe abstract words, for older more educated children (e.g. state difference between abstract words)
* Some questionable items
Standardization : A child’s mental age was calculated by comparing the score /30 to the score of a group of children the same chronological age
- Platform for the current IQ test
The Stanford-Binet Test
Based on the Simon-Binet test
Item for a 4 years old
“Repeat the following numbers: 3 6 7”
Item for an Adult
“Describe the difference between misery and poverty”
IQ (intelligence quotient) as we know it :
* IQ RATIO scores : (Mental Age (MA) / Chronological Age (CA)) * 100
* If MA > CA, ability is above average of peers (gifted)
* If MA < CA, ability is below average of peers (delayed)
IF MA = CA : IQ = 100 (average)
Wechsler Tests
- Measuring different components of intelligence
- Separate scales for children and adults
- Separate scales for different types of intelligence
- Wechsler intelligence scale for CHILDREN (WISC)
- Wechsler ADULT intelligence scale (WAIS)
Components of full scale IQ (FSIQ) in Wechsler tests
- Verbal IQ (VIQ)
Similarities
- Explain what two words have in common
- Analogical Reasoning
Vocabulary :
- define words - Performance IQ (PIQ)
Picture completion
- Determine what is missing from a picture
Picture arrangement
- Organize pictures in a logical order to represent a story
Pros and cons of Weschler tests
Pro :
- Total of 14 different test : good tests because they acknowledge different types of abilities
Cons :
- culturally biased and they’re affected by our language function (e.g. not all cultures play cards, use the same words)
Raven’s progressive matrices
Shown patterns with a missing section
* Asked to determine the missing piece from a set of options
Non-verbal assessment :
* Relatively free from linguistic influences and thus free from cultural biases
Factors affecting IQ performance
- Socioeconomics : richer people have more time to help their children do well, send to good schools
- Gender differences in self-estimated intelligence : men are more confident in their own IQ = higher test anxiety for women
- Culture: Familiarity with task and stimuli can affect performance
Genetics and IQ
- Shared genetics is a better predictor of IQ score similarity (correlations) than the environment : accounts for 50 to 70% of variability in these scores
Identical twins in separate environments : their similarity of IQ is as much as high as identical twins raised together, and it’s much higher than fraternal twins that were raised apart or raised together.
The Flynn effect
In 1980s, for all the tests, Americans’ IQ scores increased 3 points per decade over 100 years
Flynn effect: Education
- In most countries that have reported an increase in IQ scores, like the states, you see an increase in educational opportunities.
- In the states in the 30s, people had about 8 to 9 years of education on average, and then in the 1990’s the average number of education, years of education rose to 12 to 14.