lecture 6 Flashcards
rules for translation human perceptions and thoughts to numbers
quantification rules
what is a systematic process of assigning numbers to characteristics
measurements
process of forming judgements and making decisions based on a variety of measurements
evaluation
any systematic deviation between the results of a study and the “truth”
scientific bias
what type of test bias favors one group over the other
content bias
type of bias that results rom a variety of external factors that influence test performance
testing situation bias
who pioneered intelligence testing
Alfred Binet
who is the pioneer of modern statistics
karl pearson
what is psychometrics
a discipline focused on the theory and application of psychological measurement
what is the item response theory
a paradigm for item analysis used in test scoring and construction that does not assume that all items are equally difficult
what is computerized adaptive testing
allows for adjusting item difficulty to the ability level of an individual
rationale for developing different levels of measurement
same number can represent different characteristics
what type of variable is drink size
ordinal
what measurement feature exists if the difference between two numeric values represents the same degree of difference in a measured characteristic
equal intervals
what does it mean to have an absolute 0
meaning 0 truly signifies the absence of a measured characteristic