Class Notes (806,820)
Canada (492,456)
Psychology (2,614)
PSYC 1002 (267)

Chapter 9: Intelligence (3)

3 Pages
Unlock Document

Carleton University
PSYC 1002
Lorena Ruci

Lecture 6: Intelligence Extremes of Intelligence: Intellectual Disability or Mental Retardation  Diagnosis based on IQ and adaptive testing  Sub-average level of intelligence (average = 100)  Adaptive skill deficits  Origination before age 18  People who score 2 standard deviations below the mean, lacking necessary adaptive skills people have in everyday activities in taking care of ourselves (communication, social skills, hygiene) that most children have  2-3% of population is diagnosed with mental retardation  Four levels: mild, moderate, severe, and profound (mild is most common, 80% of diagnosed)  Least common is profound  Causes of mental retardation o In ¼ of the cases, there is a biological cause (chromosomal, diseases) o Also some environmental causes (mental illnesses, toxins like lead or mercury, complete lack of environmental stimulation, etc.) o Fetal alcohol syndrome: in first trimester, if there is no miscarriage (cognitive and developmental problems)  Table 9.2* IQ ranges o Mild: 50-70 o Moderate: 36-50 o Severe: 20-35 o Profound: below 20 Extremes of Intelligence: Giftedness  IQ is two standard deviations or more above the mean o Some say 130+  There are certain personality traits that can’t be shown in IQ tests: o Creativity, charisma, leadership, special talents  Practical definition of intelligence differs from an ideal definition of intelligence  Stereotypes: o Very smart people, isolated, weak, socially inept, and emotionally troubled  Lewis Terman (1925) largely contradicted stereotypes  Ellen Winner (1997) moderately vs. profoundly gifted; somewhat conformed to stereotypes, but she isolated those who scored 130-150 and looked at people with 180+, and compared the two; those who were profoundly gifted showed some social ineptness and weren’t good with interpersonal skills  Giftedness and high achieving – beyond IQ o Renzulli (2002) intersection of three factors: intelligence, creativity, and motivation; all needed in order to do well in school and other areas o A high IQ alone doesn’t determine your success  Simonton (2001) drudge theory and inborn talent o People who perform with high levels of proficiency aren’t necessarily there because of high levels of intelligence, but because of perseverance, determination, and practice o Hidden gifted – don’t have the support (economic, education, etc.)  The theory of 10,000 hours o If you manage to practice something (sports, music, etc.) for 10,000 hours you’ll be at a level of extreme proficiency o Practice for 3 hours a day, every day, for 3 years Heredity of Environment  Genes or environment? Which one has a greater effect?  Heredity: family and twin studies, heritability estimates (40-50%, estimate of proportion of population that a certain trait depends on genetics; group statistic, not applicable to individuals)  Identical and fraternal twins; people raised in same household display similar levels of intelligence; twins raised apart don’t have the same level o Therefore, intelligence can be attributed to the environment  Environment o Ad
More Less

Related notes for PSYC 1002

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.