1st Flashcards
(16 cards)
Measurement scales:
Categories
Nominal
Measurement scales:
Categories
Rank
Ordinal
Measurement scales:
Categories
Rank
Meaningful distance
Interval
Measurement scales
categories
rank
Meaningful distance
True zero
Ratio
Levels can be identified with points on a line, and the origin is known (measures from an absolute zero (“true” zero points)
Ratio scale
This scale can compare meaningfully one weight versus another
Ratio scale
Levels of the scale are assumed to be quantitatve but exact numerical values are not known
Observations can be ordered (ranked) on the basis of their standing relative to each other or according to their relative magnitudes
Ordinal scale
Levels can be identified with points on a line (having equal units), but the origin of the scale is undetermined (arbitrary zero point)
Interval scale
Defined specific categories by name
No quantitative implication
Nominal scale
Simply sorts objects or classes of objects into mutually exclusive categories. The number simply names or categorizes the object or subject
Nominal scale
Is the assignment of numbers to the properties of objects or events according to rules, which determine their scale of measurement
Measurement
Is the process of measuring
Mensuration
A set of data is said to be ___ if the values belonging to the set are distinct and separate
Discrete
A set of data is said to be ___ if the values belonging to the set can take on any value within a finite or infinite interval
Continuous
When observations of a quantitative variable can assume the infinitely large number of values in a line interval, the variable is called ___
Continuous variable
When observations of a quantitative variable can assume only a countable number of values, the variable is called __
Discrete variable
