Midterm Flashcards
(33 cards)
Norm Referenced Instruments
comparing a score with that of a specific collective also tested.
Criterion Referenced Instruments
comparing a score with a criterion apart from the group
the middle score or the middle point of the two middle scores.
Median
the score that appears most often.
Mode
Measures of Variability
seeing how much the data varies.
subtract highest score from lowest score and add 1
Range
square root of the variance
standard deviation
Normal distribution numbers
34, 13.5, 2.14.
Raw Score
your raw score data
Percentile Rank
how a score lines up with other scores
Z score
being able to compare two different scores from different tests with different SDs
T score
take an individual score and transform it into a standardized form
Stanines
each chunk of a normal distribution
Equivalent Score
median raw score for a particular age
amount of reliability a test has over time/as often as it is given to the same or different groups
Test Retest
reliability between different forms of the same test (ACT scores)
Alternate forms
reliablity where you divide a test in half to compare the test in an insular way
Split Half
reliability of the judges
Interrator
how reliable is the test between items
Internal Consistency
Content Related Validity
if your measurement questions/tools make the test valid (all being mean questions)
Criterion Related Validity
checking peformance against a criterion
concurrent validity
predicting ability right now
predictive validity
predicting ability in future
construct validity
are you measuring what you are trying to measure