research methods - levels of data Flashcards
What are the three levels of data?
Interval, ordinal, nominal
What is interval data?
Data used to standardised unit or measurements
Examples include histograms and bar charts.
What are examples of interval data?
Measuring heights in cm of people, temperature, score of a test
What is ordinal data?
Ordered data, ranked or rated data.
What is an example of ordinal data?
Ordering a group of people in order of their heights from tall to small.
What are the strengths of ordinal data?
More detailed than nominal and can see the range.
What are the weaknesses of ordinal data?
The gaps between values don’t have to be equal, so mean can’t always be used to analyze data.
What is nominal data?
Nominal data refers to categories of data or behavior.
What are examples of nominal data?
Examples of nominal data include organizing people into three groups: tall, average, short; and yes/no, female/male responses.
What are the strengths of nominal data?
Strengths of nominal data include being easy to generate and work with, as well as the use of closed questions.
What are the weaknesses of nominal data?
Weaknesses of nominal data include limited details and the ability to only use the mode when analyzing data.
