Reliability
how consistently a concept is being measured by comparing to some equivalent measure.
parallel-form reliability
the explanations/ causes of outcomes
independant variables
relationship between two or more variables
hypothesis
numbers are in order with equal size variables, no absolute zero
interval
content of items covers all dimensions of idea
content validity
how reliable something is when it is tested over and over
test-retest reliability
concepts translated into somthing measurable
variables
no relationship exists between variables
null
discrete measures who's values represent named categories of classification
nominal
results are similar to some external criteria
criterion validity
compare responses to similar questions within a questionnaire to see if there is consistency
the outcomes owe are seeking to understand
dependent variables
variables move in opposite directions, if one increases, the other decreases
negative or inverse one-directional
discrete measures in which values increase and decrease in a particular order
ordinal
measure is doing what it is supposed to be
selecting group of items developed to measure some variable and then compare answers within the group.
split-half reliability
measured with values that do not contain information between them
does not specify a direction ahead of time
two-directional, or two-tailed
has absolute zero, no negative numbers
ratio
how accurately measures predict some future
predictive validity
inter-rater reliability
action causes a similar reaction
positive one-directional
a number is assigned to categories, non-mathematical
coding
the items are measuring a concept with some accuracy
construct validity