PSCI 2075 Lecture 2: 2075 quantative research methods 01/23
Document Summary
Interval level (variables have values that are the most precise) numbers. Ordinal level variables have values that are somewhat less precise ( approval or disapproval of same sex marriage ) could be a scale. Nominal level variables have the least precise values (gender: female and male) Variable is an empirical measurement of a characteristics. Every variable has one name and two possible values. The word that fills is the name of the variable. The question is always answered by one of the variables values. What is this person"s marital status (variable name) Not what is this persons single (variable value) Range of variables value that falls in middle half of distribution. Any variable can be described by its. May be used with any level of measurement. For nominal variables the only measure that may be used. 50% of cases fall either below of above. Add up all the values and divide by the number of cases.
