And All Updated Answers.
what is the main purpose of assessment - Answer -gather information about performance and
understand strengths and weaknesses related to language
why should we assess - Answer screening, establish baseline function, establish goals for intervention,
measure change in intervention
psychometric tools of assessment - Answer validity, reliability, standardization sample, diagnostic and
psychometric accuracy
validity - Answer the degree to which a test actually measures what it's supposed to measure
internal validity - Answer extent to which we can draw cause-and-effect inferences from a study
construct validity - Answer the extent to which variables measure what they are supposed to measure
construct validity example - Answer In developing a new IQ test, you must operationally define
intelligence so that the measure assesses your definition of intelligence.
face validity - Answer Measures whether a test looks like it tests what it is supposed to test.
face validity example - Answer asking subjects to point to pictures that examiner names is a good way
too assess whether subject knows what the word means
content validity - Answer The degree to which the content of a test is representative of the domain it's
supposed to cover.
criterion related validity - Answer whether instrument shows strong correlation with others meant to
measure the same thing
, predictive validity - Answer Refers to the function of a test in predicting a particular behavior or trait
concurrent validity - Answer scores on the measure are related to a criterion measured at the same
time
external validity - Answer an attribute of an experiment in which variables have been defined in a
normal, typical, or realistic way
reliability - Answer ability of measure to be consistent throughout time, test givers, or forms
test-retest reliability - Answer using the same test on two occasions to measure consistency
inter-rater reliability - Answer indicates how consistent scores are likely to be if the responses are
scored by two or more raters using the same item, scale, or instrument
internal consistency - Answer subtests rank subjects similarly and/or parts of test are measuring the
same as the whole test
split- half reliability - Answer scores from the first half of the test are comparable with scores from the
second half
diagnostic accuracy - Answer how accurately they assign clients to diagnostic categories
types of diagnostic accuracy - Answer sensitivity and specificity
sensitivity - Answer true positive rate, probability of detection, not missing children
specificity - Answer true negative rate, dont want to over-identify children