The four levels of measurement that were proposed by Stevens are nominal, ordinal, interval, and ratio. At the nominal level the variables are categorical and there is no order.
Traditionally, statisticians talk of four types of measurement scales: (1) nominal , (2) ordinal , (3) interval , and (4) ratio . 1.1.1 Nominal Scales The word nominal is derived from nomen , the Latin word for name.
A) Simple random sampling B) Stratified sampling C) Cluster sampling D) Systematic random sampling 10) Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.
David Tenenbaum -GEOG 070 -UNC-CH Spring 2005 Color Hue (color) •differences in wavelengths of light reflected (or emitted, in the case of computer monitors) •useful for nominal data, can be used for ordinal & interval/ratio data but is tricky •perceptual difficulties for some map readers ...
Lesson 2 Scales of Measure Outline Variables-measurement versus categorical-continuous versus discreet-independent and dependent Scales of measure-nominal, ordinal, interval, ratio Variables A variable is anything we measure.
5 How Do We Measure Concepts? Characteristics of a Good Measurement Procedure Levels of Measurement Levels of Measurement: Nominal Levels of Measurement: Ordinal Levels of Measurement: Interval Levels of Measurement: Ratio Summary of Levels of Measurement What Are Reliability and Validity?
4) Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. 5) The temperatures of eight different plastic spheres.
Newsom 1 USP 534 Data Analysis Spring 2011 Levels of Measurement and Choosing the Correct Statistical Test Levels of Measurement Most textbooks distinguish among nominal, ordinal, interval, and ratio scales based on a classification system developed by Stevens (1946).
by Stevens (1946):nominal, ordinal, interval, and ratio (see Table 1.1 for a summary 6—— CHAPTER 1 11..66 ♦♦ 01-Warner-45165.qxd 8/13/2007 4:52 PM Page 6
Identify the data set's level of measurement (nominal, ordinal, interval, ratio): a) hair color of women on a high school tennis team b) numbers on the shirts of a girl's soccer team c) ages of students in a statistics class d) temperatures of 22 selected refrigerators e) number of milligrams of tar in ...