Levels of Measurement

  1. Here are brief definitions of four levels of measurement in scrambled order:
    • A ratio variable is a numerical variable where the value of zero indicates an absence of the quantity being measured.
    • An ordinal variable is a categorical variable that has a natural ordering to the possibilities.
    • A nominal variable just puts values into groups without any ordering.
    • An interval variable is a numerical variable where differences between values makes sense but ratios do not.
    Drag the variable types into the slots by order of increasing information content:
    ratio
    ordinal
    nominal
    interval

     

  2.  Please answer question 1 to reveal this question.

    Pick four variables that interest you so that you have one variable of each type and then drag them into the corresponding slots below.

     

    Calendar Year
    Cancer Stage
    Engine Weight
    Eye Color
    Favorite ClassBest Class
    Family Size
    Film Rating (5-star scale)Rating 1-5
    Gender
    Genotype
    Grade in Course (A, B, C, D, F) (A-F)
    Grade Points
    Hair Color
    Pulse (bpm)Heart Rate (beats per minute)
    Height (inches)Height (in)
    Longitude
    Housing (own, rent)Own or Rent?
    Mileage (miles per gallon)Mileage (mpg)
    Net Worth (dollars)Net Worth ($)
    Pain Level (none, mild, excruciating)Pain (eg mild)
    Race
    Rainfall (in)Rainfall (inches)
    Religion
    Shoe Size
    Soldier Rank
    Temperature (°F)
    Temperature (Kelvin)
    Threat Alert (low, guarded, elevated, high, severe)
    Time of Day
    T-Shirt Size
    Type of Pet
    U.S. State
    Weight (pounds)
    Year in School

     

    Nominal:
    Ordinal:
    Interval:
    Ratio: