They are reasonable valid measures of
academic intelligence but they do not tap
social or practical intelligence
In modern scoring system
deviation IQ scores indicate
where people fall in the
normal distribution of
intelligence for their age
group
They are intended to measure
potential for learning I Q test
inevitable assess a blend of
potential and knowledge
IQ scores are correlated with
occupational attainment but
their ability to predict
performance within
occupations is the subject of
debate
Intelligence testing is largely a
western enterprise I Q test are not
widely used in most non-western
culture's
Extremes of Intelligence
Intellectual disability
Intellectual disability refers to
subaverage general mental
ability IQ lesson 70
accompanied by deficits in
adaptive skills originating before
age 18
Diagnosis
should not be
based solely on
test results
Intellectual disability may be mild moderate
severe or profound. the vast majority 85% of
individuals have mild intellectual disability
Many organic
conditions can cause
intellectual disability
but a specific organic
cause can be identified
in only about 50% of
cases
Cases of unknown origin tend to involve
mild disability and are believed to be
mainly caused by unfavourable
environmental factors
Giftedness
Children with a score of 130 as the
typical minimum are viewed as
gifted
Terman showed that gifted
children tend to be socially mature
and well adjusted although winner
has raise concerns about the
adjustment off profoundly gifted
individuals
Extraordinary achievement
seems to depend on intensive
training and hard work but
innate talent may also
contribute
Key Concepts In Psychological
Testing
Standardization :
Refers to the uniform
procedures used in
administration and
scoring a test
Types of Test:
Mental ability test: measure
general intelligence aptitude
for specific types of learning or
achievements in specific areas
of study
Personality tests:
measure various
types of personality
traits as well as
motives interest
values and attitudes
Reliability :
The measurement
consistency of a Tess
Norms :
Indicates where a score
on a test ranks in
relation to other score
Percentile :
Scores indicate the percentage
of people who score at or
below specific scores
Validity :
The ability
of a test to
measure
what it was
designed to
measure
Construct
Validity
Refers to the
extent to
which there's
evidence that
test
measures a
specific
hypothetical
construct
Criterion- related validity:
Is estimated by correlating
subject scores on a test
with their scores on an
independent measure of
the trait
Content-related Validity:
Refers to the degree to which
the content of a test is
representative off the
domain it is supposed to
cover
Heredity and Environment as Determinants of
Intelligence
Interaction of heredity
Reaction range position it's
that charity places limits
on one intellectual
potential while the
environment determines
where once fall within
these limits
Evidence indicates
that environment is
also an important
determinant of
intelligence
Cultural Differences in IQ scores
Genetic
explanation for
cultural
differences in IQ
has been challenged
on a viarety
of grounds
Ethnicity varies with
social class, so socioeconomic
disadvantage may
account for a low IQ
scores among minority
students
cultural bias on IQ
test may also
contribute to
ethnic differences
in average IQ's
Evidence
for
Heredity influence
Twin studies show
that Identical twins
are more similar in
intelligence than
fraternal twins
This shows
that
intelligence
is inherited
at least in
part
Adopted
children
resemble
their
biological
parents
and
intelligence
History Of Intelligence Tests
Modern intelligence
testing was launched in
1905 by Alfred Binet
who devised a scale to
measure each child's
mental age
In 1939 David Weschler publish an improve
measure of intelligence for adults which
introduce the deviation IQ score based on the
normal distribution
Lewis terman
revise the
Binet's scale
to produce the
Stanford in
it skills in 1916
which introduce
the intelligence
quotient IQ
Spearman argued that all
cognitive test share a
core which he called G
whereas Thurstone
asserted that intelligence is
made up of independent
abilities
Book views remain
influential today as
researchers are
primarily interested
in G but contemporary IQ test
typically subdivide G
into 10-15 specific
abilities
The first intelligence
test were devised by
Sir Francis Galton,
who sought to show
that intelligence is
inherited
New Direction in the Assessment and Study of
Intelligence
Recent years have brought increased interest in
biological indexes of intelligence including such
things as IQ and brain size and quantity of gray
and white matter in the brain
IQ scores measured in
childhood correlate with
Longevity to decades later.
Sternberg's triachic theoary posits
that hallmark of intelligence are the
abilities to deal with novelty and
handle formiliar tasks automatically
According
to Sternberg
successful
intelligence
include
three
facets;
Analytical
intelligence
Creative
intelligence
Practical
intelligence
Howard Gardner has
argued that there are
eight largely
independent types of
human intelligence
Some theorists believe that the measurement of
emotional intelligence can enchance the prediction of
people success but critics question whether
emotional sophistication should be viewed as a form
of intelligence