AP Psychology Modules 60-64 PDF
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This document discusses crystallized and fluid intelligence, examining how these cognitive functions change across the lifespan. It also explores the concept of stability in intelligence scores over time and extreme variations in intelligence, touching on conditions like Down Syndrome.
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C rystallizedintelligence:ouraccumulatedknowledgeasreflectedinvocabularyandanalogies testsincreasesuptooldage Fluidintelligence:ourabilitytoreasonspeedilyandabstractly(e.g.,withlogicpro...
C rystallizedintelligence:ouraccumulatedknowledgeasreflectedinvocabularyandanalogies testsincreasesuptooldage Fluidintelligence:ourabilitytoreasonspeedilyandabstractly(e.g.,withlogicproblems) decreasesbeginninginour20sor30s Asweage,fluidintelligencedeclinesbutcrystallizedintelligenceincreasesandourabilitytotake multipleperspectivesandofferwisdomincreases(worldpower) Cross-sectionalstudy:researchthatcomparespeopleofdifferentagesatthesamepointintime Longitudinalstudy:researchthatfollowsandreteststhesamepeopleovertime Peoplewhosurvivedthelongestinthesestudiestendedtobehealthierandbrighter(higherIQ) Fluidintelligenceisatitspeakinsomeone’s20sor30s(whichiswhywritersandartistsproduce theirbestworkatthistime) StabilityOvertheLifeSpan: Observationandintelligencetestsbeforetheageof3aren’tgreatpredictorsoffutureaptitudes, but,byage4,intelligencetestsbegintopredictadolescentandadultscores Theconsistencyofscoresincreaseswiththeageofthechild,andthestabilityisgreatbyage11 (IanDeary) IanDearydidanexperimentinScotlandthatfoundthattheIQat11wasverysimilartotheIQat 80 ○ Also,children andadultswhoaremoreintelligenttendtolivehealthierandlongerlives ○ 4reasons:moreeducation&betterjobs,encouragementtolivehealthierlives,prenatal eventsorchildhoodillnessescouldhaveimpactedintelligenceandhealth,awell-wired bodyfostersintelligenceandlongevity ExtremesofIntelligence: TheLowExtreme: Intellectualdisabilityisadevelopmentalconditionthatisapparentbeforeage18 ○ DownSyndrome:aconditionofmildtosevereintellectualdisabilityandassociated physicaldisorderscausedbyanextracopyofchromosome21 Intellectualdisability:conditionoflimitedmentalability,indicatedbyanintelligencescoreof70 orbelowanddifficultyadaptingtothedemandsoflife(inthreeareas:conceptual(language, reading,time,number),social(interpersonalskills,followingrulesandlaws),andpractical (healthandpersonalcare,travel,etc.)) TheFlynneffectcancausetheboundaryfortheintellectual-disabilitytestscoretochange ○ Canimpactthequalityoflifeforaperson(canbeexemptedfromthedeathpenaltyorbe madeeligibleforspecialeducation/financialassistance) TheHighExtreme: LewisTermanstudied1500CAschoolchildrenwithIQscoresover135(latedcalled“Termites”), andmostofthemeventuallyattainedhighlevelsofeducationandwereinhigh-paying professions But,labelingchildrenasgiftedandungiftedcanleadtoaself-fulfillingprophecy(canwidenthe achievementgapsincegroupsliveuptoordowntoexpectations) ○ Trackingthiscanalsopromotesegregationandpredjudice,sincelow-incomeand minoritystudentsareoftenplacedinungiftedgroups Appropriateplacementisthebest! odule63:StudyingGeneticandEnvironmentalInfluenceson M Intelligence TwinandAdoptionStudies: Peoplewhosharethesamegenesalsosharementalabilities Intelligencescoresofidenticaltwinsraisedtogetherarenearlyassimilarasthoseofthesame persontakingthesametesttwice(fraternaltwinsvariesmore) ○ Theheritabilityofintelligence(theextenttowhichintelligencetestscorevariationwithin agroupcanbeattributedtogeneticvariation)isbetween50to80percent ○ Identicaltwinsalsohaveverysimilartalents(e.g.,music,sports) Identicaltwinshavesimilargrayandwhitemattervolumeandtheareasassociatedwithverbal andspatialintelligencearevirtuallyidentical(alsoshowsimilaractivitywhendoingmental tasks) Heritabilitydefinition:theproportionofvariationamongindividualsinagroupthatwecan attributetogenes.Theheritabilityofatraitmayvary,dependingontherangeofpopulationsand environmentsstudied Environmentsalsoimpactintelligence: ○ Adoptionenhancestheintelligencescoresofmistreatedorneglectedchildren(orfrom povertyintomiddle-class) ○ Same-age,unrelatedsiblingsadoptedasinfantsandraisedtogetheralsohavesome intelligencecorrelation Adoptedchildren’sintelligencetestscoresmatchmorewiththeirbiologicalparentsthanwith theiradoptiveparents Heritabilityofgeneralintelligenceincreasesintoadulthood EnvironmentalInfluences: EarlyEnvironmentalInfluences: Extremedeprivationofresponseandcareruinsnativeintelligence(discoveredbyJ.McVicker Hunt) ○ HuntbeganatrainingprogramforcaregiversinIrantoteachthemhowtostimulatetheir ⇒ children improvedintelligencebyalot Poorenvironmentalconditionscandepresscognitivedevelopmentandpoverty-relatedstresses canimpedecognitiveperformance SchoolingandIntelligence: EarlyIntervention: ○ Schoolingandintelligenceenhancelateroutcome ○ Educationhasthepotentialtoboatchildren’schancesforsuccessbydevelopingtheir cognitiveandsocialskills ○ However,aptitudebenefitseventuallyfadeawayovertime(HeadStartprogram) ○ Intelligencescoresalsoimprovewithnutritionalsupplementstopregnantmothersand newborns ⇒ ○ Epigenetics(genetics+experience) natureandnurturemeetingplace GrowthMindset: ○ Believingthatintelligenceischangeableleadstoagrowthmindset,andpeoplewiththis mindsetfocusonlearningandgrowing ○ A lso,receivingpraiseforeffortandtacklingchallengesratherthanbeingsmartor accomplishedhelpsteensunderstandthelinkbetweenhardworkandsuccess makes ⇒ themmoreresilient ○ Ability+opportunity+motivation=success ○ Low-incomestudentswithagrowthmindsethadtestscorescomparableto middle-incomestudentswithafixedmindset Module64:GroupDifferencesandtheQuestionofBias GroupDifferencesinIntelligenceTestScores-GenderSimilaritiesandDifferences: Intelligencescoresbetweenmenandwomenhaveveryminordifferences(g isbasicallythesame) Girlsoutperformboysinspelling,verbalfluency,locatingobjects,etc.(ancestralmotherswould havebenefitedmorefromanabilitytomemorizethelocationofplants,etc.) Boysoutperformgirlsinspatialability(geometry,fittingobjectsinasuitcase,andothertasksthat wouldhavehelpedourancestralfatherstrackpreyandmaketheirwayhome)andcomplexmath problemsolving ○ Male’smentalabilitiesalsogenerallyvarymorethanfemale’s StevenPinkerarguedthatbiologyaffectsgenderdifferencesinlifepriorities(womenhavemore interestinpeople,andmenhavemoreinterestinmoneyandthings),risk-taking(menaremore reckless),andinmathreasoningandspatialabilities Socialinfluencesconstructgender:culturalinfluencesexplainwhyAmericanwomenavoid math-relatedprofessions Boysaremorelikelytoberepresentedamongthosescoringextremelylowaswellasthose scoringextremelyhighontestsofmentalabilities. GroupDifferencesinIntelligenceTestScores-RacialandEthnicSimilaritiesandDifferences: Racialandethnicgroupsdifferintheiraverageintelligencescores(buttheaveragedoesn’t determinethedifferencebetweenspecificpeople) Atypeofintelligencetestmightbeeasierforpeopleofsomeculturalbackgroundsoverpeople fromotherculturalbackgrounds Individualdifferencesmightbegenetic,butgroupdifferencesarenot Overtime,gapsbetweenracialgroupshavedecreased;also,whenprovidedwiththesame education,peopleofdifferentracialgroupsarealmostthesame Schoolsandculturematteralot:poorpeoplehavelowerintelligencetestscoresthanrichpeople TheQuestionofBias: TwoMeaningsofBias: Biasmeanswhetherornotatestisvalid(e.g.,iftheSATisagoodpredictorofwomen’saptitude butnotmen’saptitude) Atestisbiasedifitdetectsnotonlyinnatedifferencesinintelligencebutalsoperformance differencescausedbyculturalexperiences ○ Immigrantsintheearly1900swerelabeleddumbbecausetheywereunabletoanswer questionsabouttheirnewculture Intelligenceresearcherssuggestthattest-makerscreateculture-neutralquestions(culture-fair attitude) Defendersofexistingintelligencetestsnotethatracialgroupdifferencespersistonnonverbal itemsandthatblamingatestforagroup’slowerscoresislikeblamingamessengerforbadnews Test-Taker’sExpectations: StevenSpencergaveadifficultmathtesttomenandwomenandfoundthatwomendidworse, exceptwhentheyhadbeenledtoexpectthatwomenusuallydoaswellasmenonthetest Expectationsaffectedperformance Stereotypethreat:aself-confirmingconcernthatonewillbeevaluatedbasedonanegative stereotype ○ Knowinganegativestereotypecancausesdistractionandworry,whichcannegatively impactperformance