Psychological assessments Flashcards
Psychological testing provide concern for what to the test takers
their intellectual abilities, personalities, emotional states, attitudes, and behaviors that reflect lifestyle or interests
Types of reliability
Test-retest, Inter Judge, Internal consistency
Test retest
The degree to which test scores obtained from people at one time (the “test”) agree with the test scores obtained from those people at another time (the “retest”)
Inter-Judge
The extent to which two or more people agree on how to score a particular test response
Internal consistency
How well items on a test correlate with each other
Types of Validity
Content, criterion, construct
content
How well the test reflects the body of information it is designed to tap
criterion and types
The extent to which the test scores relate in expected ways to another benchmark
Concurrent: How well scores on a test relate to other measures taken at the same time
Predictive: The extent to which test scores relate to future performance
construct
The extent to which a test measures a theoretically derived psychological quality or attribute
Standard uniform procedures
The way test is administered
Same instructions
Uniform scoring method : M.C.Q. vs subjective rating
Free of bias: extensive training in conducting and scoring test is mandatory
Having objective indicators like percentiles or percentages
Applicability to test takers from a diversity of backgrounds
Intelligence testing
Charles Spearman, Concept of “g”: individual’s inherited capability and in part the influence of education and other experiences
Info. about person’s cognitive capacities and deficits
Two types of intelligence tests
Individual and Group tests
Stanford Binet Intelligence test
Binet and Simon,1905
1916, modified by Lewis Terman
Age groups: 2-23 years
Total time: 30-90 min
IQ= (Mental age/Chronological age)*100
Yields: Full IQ, Verbal IQ, Performance IQ
Measures 5 abilities:
Fluid Reasoning
Knowledge
Quantitative Reasoning
Visual-Spatial Processing
Working Memory
Weschler intelligence scales
David Wescheler,1939
Deviation IQ
Use with adults
Two scales:
Verbal
Performance
Four characterizations:
Verbal Comprehension,
Perceptual Organization
Working Memory, and
Processing Speed
IQ testing usage
Psychoeducational assessment,
The diagnosis of learning disabilities, or neurological and psychiatric disorders (used as a part of comprehensive assessment)
The determination of giftedness or mental retardation
The prediction of future academic achievement.
In personnel selection when certain kinds of cognitive strengths are especially important.
IQ testing considerations
Needs to be interpreted in the context
Score on IQ may get affected by the other psychological factors
Person’s cultural, ethnic, and racial background needs to be taken into account