Chapter 9 Flashcards

(45 cards)

1
Q

what is intelligence ?

A

there is no clear cut definition of intelligence. Even today, scientist can’t agree on the precise definition of intelligence.

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2
Q

Intelligence : Sensory capacity

A

Galton : he thinks is a by-product of sensory capacity.
He reasoned that most knowledge first come through the senses , especially vision and hearing.
Hence he thought that people with for example better eye sight , should acquire more knowledge than other people.
Obviously , this is not correlated whatsoever to overall intelligence.

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3
Q

Intelligence : Abstract thinking

A

french government got Binet + Simon to develop an objective psychological test that would identify students who might require additional instruction on certain scholastic abilities.
They developed the first intelligence test. ( a diagnostic tool to measure overall thinking ability.)

most experts agree that whatever intelligence is , it has something to do with abstract thinking

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4
Q

What was in the diagnostics test ?

A

completing incomplete sentences, determining the similarities between 2 objects ( how are dog and rose alike )
and constructing a sentence from 3 words

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5
Q

abstract thinking what is it ?

A

the capacity to understand hypothetical concepts , rather than concepts in the here and now.

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6
Q

In1921,Americanexpertslistedtheir
definitionsofintelligence.
what is it ?

A

Commonfactorswereabilitiesto:
◦ Reasonabstractly (think about things that are not concrete ideas
◦Learntoadapttonovelenvironmentalcircumstances ◦ Acquireknowledge (• not just about learning stuff such as languages or history but also about learning how to ride a bike )

◦ Benefitfromexperience (learn from past mistakes)

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7
Q

intelligence as general or specific abilities

A

PositivecorrelationsamongallitemsonIQtests
ledtoSpearman’sdevelopmentofg ands in order to explain the results:
• Generalintelligence(g)accountsforoverall
differencesinintellectamongpeople
•Ourparticularskillsarereflectedinourspecific
abilities(s) (such as spatial problems, examining the location of objects in physical space)

Even if a person is really smart, high in overall g , they may flunk physical space test because they are deficient in spatial problems. (due to lack of experience with them or not adept at spatial task)

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8
Q

Intelligence : Fluid and Crystallized intelligence

A

• CattellandHorntheorizedthat
“intelligence” isamixoftwocapacities:

•Capacitytolearnnewwaysofsolving
problems,orfluid intelligence
We rely on fluid intelligence the first time we try to solve a puzzle we’ve never seen or the first time we tried to operate a vehicle.
•Accumulatedknowledgeoftheworld
wegainovertime,orcrystallized
intelligence
We rely on it to answer questions such as “What’s the capital of Italy? “

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9
Q

Multiple intelligences :

A

Different ways of being smart.

Severaltheoristsarguethatthereare
entirelydifferentdomainsofintellectual skill
• Gardner’s“framesofmind” –numerous (different) waysof
thinkingabouttheworld
• Arguedthatautisticsavantsprovided
supportforthesedifferenttypesof
intelligence

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10
Q

Multiple intelligences : is there mixed scientific reaction , if so why ?

A

because :
- virtuallyimpossibletofalsify ( Gardner’s model is vague and difficult to test . In addition, he haven’t formed any formal test to measure his intelligences )

◦ notclearwhycertainabilitiesclassifyas
intelligences,whileothersdon ’t
◦nogoodevidencethattheseintelligencesare
trulyindependent

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11
Q

Triarchic model

A

Sternberg argues that there more to intelligence than just g.
Sternbergtheorizedthreelargelydistinct
typesofintelligence
• Believesthathavingonedoesnotensureyou
havetheothers

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12
Q

What are the three intelligences of triarchic model ?

A

• Analyticalintelligence istheabilitytoreason
logically,or“booksmarts” (closely related to G)

• Practicalintelligence istheabilitytosolvereal worldproblems (especially those involving other people) ,or“streetsmarts”

• Creativeintelligence istheabilitytocomeup
withnovelandeffectiveanswers to questions.
so kind f intelligence in which we need to find new and effective solutions to problems.

all three overlap with each other.

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13
Q

Weaknesses of triarchic model

A

Hasseveralweaknesses
•Practicalintelligenceisnotindependentofg (may be a specialized subtype of g)

•Causalrelationshipbetweenjob
performanceandpracticalintelligence (stenberg’s work-related measure of practical intelligence may actually be measure of work knowledge (p.334) )

• Weallpossessstrengthsand
weaknesses,buttheymightnotbeas
distinctastheorized

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14
Q

BiologicalBasesofIntelligence

A

Brainvolumecorrelatespositivelywith
measuredintelligence(between0.3and 0.4)
(not sure whether these findings reflect a direct causal association. Perhaps bigger brains lead to higher intelligence. Could have a third variable, like better nutrition before or shortly after birth , leads to both. )
• Moderatecorrelationdoesn’t explainall,
andmaynotbedirectlycausal

• Evidencesuggestscerebralcortex
developmentissloweringiftedchildren
(highly intelligent 7-years old, have a thinner cerebral cortex than other children. The cortex of these children then thicken rapidly , peaking at about age 12)

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15
Q

BiologicalBasesof Intelligence

A

Intelligencemayreflectefficiencyof
mentalprocessing

Workingmemoryisalsocloselyrelatedto
intelligence
Centraltheme:Speedofinformationprocessingis
tointelligence
• Prefrontalcortexisespeciallyactiveduring
highly“g‐loaded” tasks ( brain region that plays a key role in planning, impulse control and short term memory)
◦ Butotherareasofthebrainarealsoimportant,i.e.parietalcortex
(spatial abilities )

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16
Q

TestingIntelligence

A

Unfortunately,wecan’tjustaskpeoplehow
smarttheyare
• Self‐reportsonlycorrelate0.2to0.3with
objectivemeasuresofintelligence

  • further studies suggest that people with poor cognitive skills are likely to overestimate their intellectual abilities , a phenomenon called :
    • Thedoublecurseofincompetence and
    metacognitive skills
  • metacognition refers to knowledge about our own knowledge. People with poor metacognitive skills in a given domain may overestimate their performance because they don’t know what they don’t know .
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17
Q

Calculating IQ

A

•Thedevelopmentofnormsallowustocomparea
person ’sresultsonatesttoothers

• Binet’sconceptofmentalageledtothe
developmentoftheintelligencequotient(IQ)

Mentalage /Chronologicalage X100=IQ

Thisworksforchildren,butnotadults (once we hit 16 years old , our performance on IQ tests item doesn’t increase by much. This formula would result with everyone’s IQ getting lower and lower as they get older. )
• ModernIQtestsuseadeviationIQthat
eliminatesageeffects
• Compareseachpersontowhatisnormalforhis
orherownagegroup
(IQ of 100 = in the norm range
IQ of 80 = below average
IQ of 120 = above the norm )

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18
Q

EugenicsMovement

A

•SoonafterIQtestsweredeveloped,theiruse
begantobeabused (began to use them on new North american immigrants. who barely knew the language. hardly surprising that 40% of them were classified as having an intellectual disability)
• Ledtoworryabout“lowIQ” incertaingroups (immigrants ),andtheeugenicsmovement
(eugenics = was the effort to improve a population genetic stocks by encouraging people with “good genes” to reproduce and discouraging people with bad genes to reproduce.
•Forciblesterilization of low IQ ppl (they say they needed removal of their appendices but actually remove their sex organs) andimmigrationlaws (ppl from low iq countries weren’t allowed to migrate to canada) were
mostvisibleimpactsonsociety

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19
Q

IQTestingToday

A
MostcommonlyusedIQtestforadultsisthe WechslerAdultIntelligenceScale(WAIS) Consistsof15subteststhatgivefivescores:
• OverallIQ
• Verbalcomprehension
• Perceptualreasoning
• Workingmemory
• Processingspeed
20
Q

OnwhichcontinentisFrance?

Exampleof:

A

InformationTest,tapsgeneralrangeinformation

21
Q

Whydopeopleneedbirthcertificates?

Exampleof:

A

ComprehensionTest,testsunderstandingofsocial conventionsandabilitytoevaluatepastexperience

22
Q

Howmanyhourswillittaketodrive150miles at50milesperhour?
Exampleof:

A

ArithmeticTest,testsarithmeticreasonthrough verbalproblems

23
Q

Howareacalculatorandatypewriteralike?

Exampleof:

A

SimilaritiesTest,asksinwhatwaycertainobjectsor conceptsaresimilar,measureabstractthinking

24
Q

Whichthreeofthesepiecesgotogethertomake thispuzzle?
example of ..

A

VisualPuzzlesTest,testsabilitytoorganizeparts ofafigureintoalargerspatialarray

25
show symbols associated with numbers
Digit symbol Test, tests speed of learning through timed  coding tasks in which numbers must be associated with  marks of various shapes
26
Culture‐Fair IQ Tests
IQ's test in the past rely heavily on language knowledge. test takers who are not fluent in the language of the test , may do poorly on IQ test largely because they don't comprehend the test instruction or the questions themselves. Consist of abstract‐ reasoning items that  don ’t depend on  language ``` example : • Raven’s Progressive  Matrices: Which is the  final pattern in this  series? ( they start off easy then get harder and harder hence progressive) - they must identify the pattern. ```
27
Post‐Secondary Admissions  Tests
Designed to test overall competence in a  specific domain or predict academic  success • SAT scores correlate highly (0.7 to 0.8)  with IQ
28
Reliability of IQ Scores
•In adults, scores tend to be highly stable  over long periods of time •Prior to age three, though, IQ tests are  very unstable and poor predictors of  adult IQ
29
Validity of IQ Scores
Moderately successful at predicting  grades •But because this correlation is much lower than 1.0 •Success also depends on motivation, intellectual  curiosity, effort, and mental energy • Predict performance across wide variety  of occupations and associated with  health‐related outcomes (health literacy) • Relationships hold up even when social  class is accounted for
30
Tale of two tails
Intelligence follows a bell curve distribution
31
intellectual Disability
•Characterized by childhood onset of low IQ  (below about 70) and inability to engage in  adequate daily functioning • Around 1% of North American population  (mostly males) •Four levels: mild, moderate, severe, profound • The more severe the intellectual disability, the  less likely it is to run in families •Over 200 different causes, most common are  Fragile X syndrome and Down syndrome •ADA and CHRC acts have greatly impacted lives of those with disabilities
32
Mental Giftedness
doctors, lawyers, engineers, professors • Terman ’s “Termites” showed that  prodigies do not “burn out” or have  higher rates of mental illness • Refers to the top 2% of IQ scores • Large portion occupy certain professions: 
33
what makes a genius ?
Genetic factors play a role, but so do  practice and dedication • Intellectual brilliance with little effort is  very unrealistic
34
Genetic Influences on IQ
• Family studies confirm that IQ runs in families • Sibling IQs correlate at 0.5, cousins at 0.15 • Twin studies show identical twin correlations of 0.7  to 0.8, fraternal of 0.3 to 0.4 • But high levels of environmental deprivation may  swamp out effects of genes
35
Genetic Influences on IQ | Experiments
•Twins reared apart are as similar in IQ as twins  reared together • Adoption studies point to the influence of  environment, but still strongly support  important of genetics on IQ
36
Environmental Influences
•Those that think IQ is fixed tend to take less  academic risks, challenging themselves less • Children from larger families have slightly  lower IQs than children from smaller families •Amount of schooling seems to exert a causal  influence on IQ • Early intervention programs (Head Start)  produce short‐term increases in IQ • Do result in lower rates of high school drop outs and being held back in  school • Small impact of expectancy effects by teachers  on IQ
37
Poverty and IQ
• Jensen’s cumulative deficit study • Lack of proper nutrition and exposure to lead  may lead to lower IQs • Scientific controversy regarding impact of  breastfeeding on IQ
38
Flynn Effect
•The average IQ of the population has been rising  by about 3 points every 10 years • Most likely the result of environmental changes 1.Increased test sophistication 2.Increased complexity of modern world 3.Better nutrition 4.Changes at home and school
39
Sex Differences in IQ
``` • Most research finds few or no average differences  between males and  females • But, males are more variable in their  scores ``` •Research shows consistent differences in terms  of specific mental abilities •Females tend to do better on some verbal tasks  and recognizing emotions in others • Males tend to do better on spatial ability tests,  like mental rotation and geography
40
Causes of Sex Differences
``` •Some, like spatial ability, may be  biological •Most appear to be due to environmental  differences •Infants show few or no differences •Sex differences in problem‐solving strategies ```
41
Racial Differences in IQ
• AfricanAmericans and Hispanic Americans score  lower than Caucasians on standard IQ tests • Asian‐Americans score higher than Caucasians • Jews score slightly higher than non‐Jews
42
• Racial Differences in IQ | Why do these differences exist?
* may not have access to schooling , or resources for better success * poverty * its not genetics superiority , its due to environmental factor • Racial “superiority” is certainly not the  answer ◦ IQ differences appear to be shrinking ◦ Substantial overlap in IQ distribution •Instead, differences appear to be largely  or completely environmental in origin
43
Reconciling Racial Differences
• The differences between groups are due to  environment; within groups are due to genetics • Within‐group vs between‐group heritability • Equal environments show equal IQs, no  “boost” from Caucasian ancestry Differences, however, do not appear to be due  to test bias on intelligence tests • Stereotype threat can be activated in the lab,  but may not generalize to the real world •So, broad societal differences are most likely  cause of IQ differences, not genetics
44
Creativity
•Often measured using tests of divergent  thinking, “outside the box” thinking • “Uses of an Object” test •But we also need to be good at convergent  thinking, finding the single best answer to a  problem
45
Emotional Intelligence
•The ability to understand our own and others’  emotions, then apply that information •Not clear that differs much from personality • Does not predict job performance beyond  general IQ