Characteristics of the Four Scales of Measurement
Football players are sorted by height into three groups: tall, average, and short.
What is Nominal?
What are three ways to interpret scores?
What is norm norm-referenced, criterion-referenced, and self-referenced?
Scores can be interpreted from three points of view: (a) comparison with scores obtained by other individuals (norm referenced), (b) comparison with an absolute score established by an authority (criterion referenced), and (c) comparison with other scores obtained by the same individual (self-referenced).
Name the three types of central tendency?
What is mean, median, and mode? Central Tendency is where scores cluster.
Information can be gleaned about an individual having more or less of some variable; these scales are characterized by magnitude. However, the intervals or “spaces” between ranks are not likely equal, and thus the relative size among intervals is difficult to know
What is Ordinal scales?
What type of score interpretation is the SAT, GRE, and ACT?
What is Norm-Referenced?
What is the mean: 4; 3; 9; and 2?
What is 4.5?
Mean: arithmetic average (sensitive to outliers).
Although you can add and subtract values on this scale with confidence, you should not multiply or divide values because there is no absolute zero.
What is an interval scale?
Interval scales possess magnitude and equal intervals. Examples of interval scales include temperature, checklist of behaviors, and standard deviation
What type of score interpretation is a driver's license test?
What is Criterion-Referenced? Useful when determining mastery or competence in a specific skill
What is the Median: 22; 47; 59; 32; 12
What is 32?
Median: middle score (better for skewed distributions)
The most advanced and precise measurement scale, which is seldom used in counseling assessment.
What is a ratio scale?
Ratio scales possess magnitude, equal intervals, and an absolute zero.
What type of score interpretation is comparing your first 5k run time with your third 5k run time?
What is self-referenced?
What is the mode: 22; 47; 59; 22; 32; 12; 22; 47?
What is 22?
Mode: most frequent score (useful for categorical data).