Midterm Flashcards
What do personality scales measure?
Motives, interests, values and attitudes
What is the psychometric approach?
Standard approach to measuring
What is reliability?
Whether or not a test can be taken or done multiple times with the same or very similar results
What is validity?
Is the test measuring what it’s supposed to be measuring
What are the three types of validity and what do they mean?
- Content validity: is it actually based on the right stuff
- Criterion-related validity: does it predict how you will do in a given field
- Construct validity: does the test relate to the construct
What is a positive correlation? A negative one?
Positive: two variables co vary in the same direction
Negative: two variables covary in opposite directions
How do you determine the strength of a correlation?
Closer it is to -1 or 1 the stronger the relationship
What must reliability estimates for psychological tests?
Minimum of moderately high correlation
Give an example of criterion related validity
A psychologist develops a pilot aptitude test. If this had good validity than those who score high on test would also preform well in the pilot training program
What did sir Francis Galton do?
Hereditary genius
- researched intelligence and noticed it ran in families over generations
- coined nature vs nurture and defined and tested intelligence
What was the problem with galtons hypothesis?
Money and access to resources also runs in families allowing generations in that family to do better
What did Alfred Binet and Theodore sinon do?
Were asked to develop a test to determine kids who are struggling in school and how to improve education
Developed the Binet-simon intelligence scale based on mental age
What did Lewis Terman do?
Developed the Stanford Binet intelligence scale
Used the intelligence quotient (IQ) = mental age/actual age x100
This made it possible to compare scores of different age groups
What did David wechsler do?
Developed the wechsler adult intelligence scale
Scale was made for adults and did non verbal testing as well
What did Charles spearman conclude?
Found that specific mental talents were highly intercorrelated
Concluded that all cognitive abilities share a common core, which he labelled g for general mental ability
Developed the rational behind IQ tests
Uses factor analysis
What is factor analysis?
Look at variables and the ones that are highly correlated probably have a common influence
What was guilford’s model of mental abilities?
Concluded that intelligence is made up of many separate abilities
May have as many as 150 distinct mental abilities that can be characterized in terms of the operations, contents, and products of intellectual activity
Describe the Wechsler Adult Intelligence Test?
Divided into scales that yield separate verbal and performance IQ scores
Verbal scale consists of six subtexts and the performance scale of five
What is exceptional reliability?
Correlations into the .90s
What is qualified validity?
Valid indicators of academic/verbal intelligence, not intelligence in a truly general sense
What are some correlations of the IQ test?
.4 to .5 with school success but this could be due to drive and work ethic as well as support
.6 to .8 with number of years in school but if kids are doing well they are more likely to continue
What are the three types of mental ability tests and what do they measure?
- Intelligence: measure core definition of general intelligence
- Apptitude: potential for achievement in an area
- Achievement tests: current achievement
What were the three categories of intelligence according to stern berg??
- Verbal
- Practical/street smarts
- Social/interpersonal skills
How are intellectual disability and mental retardation diagnosed?
Based on IQ and adaptive testing
IQ of 2 or more SD below mean
Have adaptive skill deficits
Originated before 18
What are the 4 levels of intellectual disability?
Mild, moderate, severe and profound
What causes intellectual disability?
Environmental - extremely deprived environment Biological - chromosomal abnormality - oxygen deprivation - brain injury
How are social class and intellectual disability connected?
Severe forms are distributed pretty evenly across the social classes, showing a product of genetics
Mild forms are greatly elevated in the lower social classes, showing a product of environment
What is the identification issue with giftedness?
In an ideal world, wouldn’t use IQ test to identify
Can be gifted in different areas
What is the definition of giftedness?
IQ 2 SD above mean standard
What are some stereotypes of giftedness?
Weak, socially inept, emotionally troubled
Lewis Trumen largely contradicted these
Ellen winner found that the stereotypes were present in those who were profoundly gifted
What was renzullis idea of success?
Intersection of 3 factors: creativity, IQ, and motivation
What was simontons view of success?
Drudge theory and inborn talent
Not enough to be born of skill
Drudge: always working to improve your ability
Extreme motivation
What is hidden gifted?
Incredibly smart but preform poorly academically
How did they study heredity as a determinant of intelligence?
Family and twin studies: found that greater genetic similarity is associated with greater similarity in IQ, suggesting
Heritability estimates: an estimate of the portion of variation in a trait determined by heredity
Range between a high of 80% and a low of 40%
How did they study the effect of environment on IQ?
Adoption studies: measured adopted child and IQ of parents (adoptive vs biological)
Cumulative deprivation hypothesis (orphanage study and head start program)
The Flynn effect
What are orphanage studies and head start programs?
Orphanage studies:
- looked for orphanages with deprived environments
- found that they suffer in intellectual development
- saw increase in IQ scores when removed to better environment
Head start program:
- removed kids at early age and placed them in program
- showed a steady, constant growth that plateaued around 12
What is the Flynn effect?
Data from IQ scored 1915-2000
Dramatic increase in average IQ scores
Indicate our environment is changing
What is the reaction range?
Heredity sets a limit on ones intellectual potential while the quality of ones environment influences where one scores within this range
People raised in enriched environment would score near the top of their range
Explains how people with similar genetic potential can be quite different in intelligence and how two people from same environment can score quite differently
What are selective breeding studies? What are the problem with them?
Focuses on evolving a certain trait by breeding only those with the trait
Rats and mice selectively bred for intelligence
Bred out not so intelligent trait
Implies intelligence = value
Can’t infer that rats are the same as humans
What are some genetic explanations for cultural differences in IQ?
Arthur Jensen- asserted intelligence is genetic and we cannot escape our destiny
Herrnstein and murry- the bell curve (paper)
Rushton- race, evolution, and behaviour (paper): ranks races according to intelligence
What are some environmental explanations for cultural differences in IQ?
Kamins cornfield analogy- socioeconomic disadvantage: poor environment
Steele- stereotype vulnerability: can’t translate material and ideas, skill develop in different areas in cultures
Cultural bias on IQ tests
How did they study stereotype vaulter ability?
Made 2 groups
Told one group to push button 500 times and they would get tired around 500
Told the second group to push it 1000 times and would get tired around 1000
First group complained about being tired at 500 where as second group said nothing
Idea influenced results
What direction is the study and assessment of intelligence now heading?
Increased emphasis on specific abilities
- beyond g
- fluid vs crystallized intelligence
Biological indexes of intelligence
- reaction times and inspection time
- has found brain development indicates specific abilities
Cognitive conceptualization of intelligence
- sternberg triarchy theory and successful intelligence
Expanding concept of intelligence
- gardeners multiple intelligence
- golemans emotional intelligence
Measuring emotional intelligence
How does the amount of white and Gray matter influence intelligence?
White= myelin
More = more efficient information transfer
More Gray = more processing abilities
Overall high cognitive abilities
When is someone emotionally intelligent?
In tune and in touch with others emotions
Able to understand and label your own emotions
Able to control your emotions
People with low emotional intelligence have trouble coping in society
What is the correlation between creativity and IQ?
No correlation as creativity isn’t tested
High correlation between mental disorders and creativity
Born creative = not appreciated, understood, unsuccessful = depressed
Depressed = have more experience and looking for an outlet = creative
What is sternbergs triarchy theory of intelligence?
Believes that intelligence consists of three parts: contextual subtheory, experimental subtheory, componential subtheory
Believed cognitive processes fall into three categories: meta components, knowledge acquisition, and preformance
All three contribute to three aspects of intelligence: practical, creative, and analytical
What are gardeners 8 intelligences?
Logical-mathematical Linguistic Musical Spatial Bodily kinesthetic Interpersonal Intrapersonal Naturalistic
Define motives
Needs, wants, desires leading to goal-directed behaviour
What is the drive theories of motives? Give and example
Seeking homeostasis
All organisms seek balance
Thirst = out of balance so seeking a drink creates balance
When do the drive theories not work?
Ex eating disorders
Feel hunger but no motivation to resolve it
What are the incentive theories of motivation?
Motives are regulated by external stimuli
What are the evolutionary theories of motivation?
Motivation to maximize reproductive success
Ex eating to survive
Need to be successful, dominant, and aggressive
Need for social interaction
What are the two broad classes of motives in humans? Give examples
Biological: hunger, thirst, sexual, sleep
Social: achievement, nurturance, order, play, affiliation
What are the biological factors regulating hunger and eating?
Brain regulation
Glucose and digestive regulation
Hormonal regulation
Describe the brain regulation of hunger.
Uses the lateral and ventromedial hypothalamus, paraventricular nucleus, arcuate nucleus (contains neurons sensitive to hunger), and Neurotransmitters such as neuropetide Y, serotonin (imbalance associated with eating disorders), and ghrelin (secreted by stomach when empty)
What is the glucostatic theory?
Changes in glucose levels effect our feelings of hunger
How does hormonal regulation motivate hunger?
Insulin signals hunger
An increase in leptin decreases hunger
What was previously believed about the hypothalamus? What is now believed?
Used to believe that the lateral and ventromedial areas were brains on and off switch for eating
Recent research suggests that paraventricular nucleus may be more crucial to regulation and thinking in terms of neural circuits rather than anatomical centres makes more sense
What are some environmental factors affecting the motivation of hunger?
Learned preferences and habits
Food related cues
Stress
What are learned preferences and habits in terms of eating?
What we are exposed to and taught in our culture
When we eat and what we eat