Chapter 5 Flashcards
common types of measurements
observational, self-report, physiological
numbers serve as labels only
nominal scale
ranking ordering of data
ordinal scale
ordered scale with equal intervals throughout
interval scale
ordered scale with equal intervals throughout
ratio scale
factors that distort your score, so that it isn’t what it should be
measurement error
sources for measurement error
transient states of the participants, stable attributes of the participants, situational factors, characteristics of measurement, experimenter error
consistency of responses on the same measure over time
test-retest
the degree to which two or more coders or observers give consistent ratings of a set of targets
interrater
the degree that all items in a scale assess the same construct
internal
how do you increase reliability
standardize administration of measure, clarify instructions and questions, train observers, minimize coding errors
are the researchers really measuring what they think they are
construct validity
does the measure appear to measure what it is supposed to
face validity
does the measure capture all parts of the conceptual definition
content validity
does the measure allow you to distinguished people based on a particular behavioral outcome
criterion-related validity
your measure and the behavioral outcome measure are administered at the same time
concurrent validity
you measure is administered week, months, or years before the behavioral outcome measure is taken
predictive validity
does our measure positively correlate with other measures that are assessing similar constructs/ does our measure negatively correlate with other measures that are assessing opposite constructs
convergent validity
does our measure only weakly relate to measure that have nothing to do with our construct
discriminant
