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EDF 4430 Questions and Answers
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EDF 4430 Questions and Answers
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EDF 4430 Questions and Answers (Set 95)(Reliability) Correlation Coefficient - ANSWER-A statistic that indicates the degree of
relationship between only two sets of scores obtained from the same group of
individuals. (The correlation between height and weight).
(Reliability) Reliability Coefficient - ANSWER-A correlation coefficient that indicates the
degree of relationship between two sets of scores intended to be measures of the same
characteristics. (The correlation between scores assigned by two different taters or
scores obtained from administrations of two forms of a test.) And ranges from 0 to 1.
A negatively skewed graph's tail points to the _____. - ANSWER-left
A positively skewed graph's tail points to the ______. - ANSWER-right
A reliability coefficient of .75 means - ANSWER-75% of observed score variance is due
to true score and 25% is random error.
A reliability coefficient of 0 means that all of the variance is _____ _______ error. -
ANSWER-random measurement
A reliability coefficient of 1 means all the variance is ___-____ variance. - ANSWER-
true score variance
Assessment - ANSWER-a set of procedures designed to provide information about
students development, growth and achievement compared with a standard.
Chronbach's alpha (Types of Reliability) - ANSWER-measures internal consistency and
is the average of all possible split half calculations (but not on the measure of splitting)
-Should not be applied to heterogeneous scales or tests.
Cognitive measures used for high stakes decisions should be around ___ or higher. -
ANSWER-.9
Complex Performance Assessment - ANSWER-Authentic
e.g. Open ended problems, essays, science experiments, portfolio's of students work.
Conditions of Administration (Factors that influence reliability) - ANSWER-1) Freedom
from distractions and misunderstandings increases reliability
2) Too little time decreases split-half reliability.
3) Too long interval decreases test-retest reliability
Construct - ANSWER-is an attribute or trait not directly measurable (often inferred from
test scores)
, e.g. honesty, anxiety, creativity, etc.
Content Bias - ANSWER-Inappropriate selection of test content
& Instructions.
Content Standards: - ANSWER-Judges the "what" -
Broad statements that describe specific content areas that groups of students should
learn at each level. They define knowledge within each discipline (they are the
curriculum or subject standards).
Contributing factors to content bias: - ANSWER-1) construction of item
2) reading level
3) vocabulary
4) content
Criterion Referenced Assessment - ANSWER-Performance that is interpreted in terms
of a clearly defines domain of tasks
Culture Fair Testing Considers: - ANSWER-Language
Motivation
Attitude toward testing
Competitiveness
Speed
Practice in testing
Opportunity to learn
Culture fair testing is the measure of ability that is free of ___________. - ANSWER-
cultural differences
Diagnostic Assessment - ANSWER-Diagnoses learning difficulties during instruction.
Driving tests are__________________because their goal is to see whether the test
taker is skilled enough to be granted a drivers license not to see whether one test taker
is more skilled than another. - ANSWER-criterion referenced assessments
Equivalent Forms (Types of Reliability) - ANSWER-Measure of equivalence.
ex: Give two forms of the test to the same group in close succession.
-Sometimes called alternative forms
-Measures equivalence of the two forms of the same scale
Equivalent Forms Procedure - ANSWER-Administer two forms of the test to the same
group then calculate the correlation coefficient.
Factors that influence reliability - ANSWER-items, conditions of administration, group of
respondents
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