Assessment and Testing Flashcards
test types
subjective - scorers opinion
objective
projective
subtest
ipsative measures
assess two or more desirable options and pick the one that is most preferred.
spiral test
items get progressively harder
cyclical test
several sections which spiral, get progressively harder
vertical vs horizontal test
vertical = versions for different ages or education levels horizontal = measures various factors in the same testing session
whats more important, validity or reliability
validity (valid tests must be reliable)
when to use inter-rater reliability
subjective and projective tests
reliability coefficients
.80 is acceptable (80% is accurate, 20% is not)
true variance/ coefficient of determination
reliability coefficient squared x 100
.70^2 = .49 x100 = 49%
galton
felt intelligence a unitary factor, mental abilities are genetic and run in families
guilford
thought 120 factors added up to intelligence
associated with convergent and divergent thinking
kudos richardson coefficients of equivalence
way to measure if items of the test are measuring the same thing as other items without splitting the test and correlating.
binet and simon
1904 intelligence test in france, pioneer in projective testing
IQ
mental age over chronological age times 100
MA/CA x 100
SAS
standard age score
SD = 16
M = 100