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Assumptions of Psychological testing and assessment. Assumption 1
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psyc 408 ch.4

QuestionAnswer
Assumptions of Psychological testing and assessment. Assumption 1 psychological traits and states exist.
trait any distinguishable way in which one individual varies from another. relate to intelligence, adjustment, attitudes.
construct an informed, scientific concept developed to describe behavior.
overt behavior an observable action including test or assessment related responses
assumption 2 psychological traits and states can be quantified and measured
assumption 3 test related behavior predicts non test related behavior
assumption 4 tests and other measurement techniques have strengths and weaknesses
assumption 5 various sources of error are part of the assessment process
error variance the component of a test score attributable to sources other than trait being measured
CTT assumption that each test taker has a true score
assumption 6 testing and assessment can be conducted in a fair and unbiased manner
assumption 7 testing and assessment benefit society tw
two key aspects of a good test reliability and validity
normative sample group of people whose performance on a particular test is analyzed for reference in evaluating the performance of test takers.
sample a portion of a population
stratified sampling including all races in a sample, helps prevent bias and aids in interpretation of findings.
stratified random sampling if every member of the population had the same chance of being included in the sample.
percentile an expression of the percentage of people whose score on a test falls below a particular raw
age norms average age at which particular performances are expected to appear.
grade norms the average grade at which particular performances are expected to appear.
national norms range of test scores that represents the average or usual performance in a nationwide sample rather than in a local one.
national anchor norms used to consider two tests that were normed by using the same sample
subgroup norms created when narrowly defined groups are samlped.
local norms derived from local population's performance on a measure.
norm-referenced consider the individual's score relative to the scores of test-takers in the normative sample
criterion referenced consider the individual's score relative to a specified criterion
Created by: jesse112
 

 



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