Intro to Psych
Psychology
January 8th, 2014
Chapter 9: Intelligence and Psychological Testing
Key Concepts in Psychological Testing
Standardization
- Test norms
- Standardization group
Reliability
- Correlation coefficient
Validity
- Content validity (ex. Acadia entrance test thats only math based, not fair to all)
- Criterion-related validity (ex. test is able to predict something important
- Construct validity
Characteristics of a good test
- Reliability: test-retest (test again), split half (score of odd vs. score of even), internal consistency - Validity: does a test measure what it is supposed to measure? content, predictive, construct - Standardization: is the normative group appropriate?
- how does the score compare to an appropriate comparison group
- WISC raw scores vary by age but not gender (in 4th edition)
- Flynn effect: IQ scores are going up over the years, revised tests restandardize performance to adjust for this (about 3 points a decade)
Validity: Example of Scholastic Aptitude Test (SAT)
- Face validity: Does the test make sense?
- Criterion validity: Does it predict University grades?
- Concurrent validity: Were they related to Grade 12 grades?
- Construct validity: Does the SAT measure the construct it is supposed to measure?
Measuring Individual Differences
Mental Ability Tests:
- Achievement Tests
- psychological tests that measure your current level of knowledge or competence in a particular subject
- Aptitude Tests:
Psychology
- psychological tests that measure your general ability to learn and solve problems in a particular subject area
- Intelligence Tests:
- tests that evaluate your overall cognitive ability to learn and solve problems general aptitude can be seen as intelligence
- Personality Tests - to be discussed in another chapter
Symons (1999): Aptitude prediction
- Criterion Validity of Graduate Record Exam Tests
- GRE scores are used to select students to conduct graduate work after a B.A or B.Sc
January 8th, 2014
Chapter 9: Intelligence and Psychological Testing
Key Concepts in Psychological Testing
Standardization
- Test norms
- Standardization group
Reliability
- Correlation coefficient
Validity
- Content validity (ex. Acadia entrance test thats only math based, not fair to all)
- Criterion-related validity (ex. test is able to predict something important
- Construct validity
Characteristics of a good test
- Reliability: test-retest (test again), split half (score of odd vs. score of even), internal consistency - Validity: does a test measure what it is supposed to measure? content, predictive, construct - Standardization: is the normative group appropriate?
- how does the score compare to an appropriate comparison group
- WISC raw scores vary by age but not gender (in 4th edition)
- Flynn effect: IQ scores are going up over the years, revised tests restandardize performance to adjust for this (about 3 points a decade)
Validity: Example of Scholastic Aptitude Test (SAT)
- Face validity: Does the test make sense?
- Criterion validity: Does it predict University grades?
- Concurrent validity: Were they related to Grade 12 grades?
- Construct validity: Does the SAT measure the construct it is supposed to measure?
Measuring Individual Differences
Mental Ability Tests:
- Achievement Tests
- psychological tests that measure your current level of knowledge or competence in a particular subject
- Aptitude Tests:
Psychology
- psychological tests that measure your general ability to learn and solve problems in a particular subject area
- Intelligence Tests:
- tests that evaluate your overall cognitive ability to learn and solve problems general aptitude can be seen as intelligence
- Personality Tests - to be discussed in another chapter
Symons (1999): Aptitude prediction
- Criterion Validity of Graduate Record Exam Tests
- GRE scores are used to select students to conduct graduate work after a B.A or B.Sc