Measurement Scales and Statistics Quiz

Which scale has no true zero and assumes equal intervals?

• Ratio

• Nominal

• Interval

• Ordinal

Which measurement scale allows only classification (categorizing without order)?

• Nominal

• Ordinal

• Interval

• Ratio

Income in ₹ is best measured on which scale?

• Ordinal

• Nominal

• Interval

• Ratio

Customer satisfaction is rated from 1 (Very Dissatisfied) to 5 (Very Satisfied) using a Likert-type scale. In social science research and SPSS, it is typically considered as:

• Nominal

• Ordinal

• Interval

• Ratio

Answer explanation

Likert items are technically ordinal, but they are often treated as interval-level (Scale) in social science research and SPSS, especially when multiple items are combined. This allows both parametric and non-parametric analysis depending on the researcher's assumptions and purpose.

What is the correct SPSS measure for weight (kg)?

• Nominal

• Ordinal

• Ration

• Interval

What is an outlier?

• A common value

• A middle value

• A data point far from others

• A missing value

Which of the following may indicate an outlier?

• A value below Q1 - 1.5×IQR

• A value equal to the median

• A repeated value

• A mean value

Outliers may occur due to:

• Data entry error

• Normal variation

• Unusual event

• All of the above

In SPSS, which chart can help detect outliers?

• Bar chart

• Box plot

• Pie chart

• Line graph

A score of 5 in a dataset where most scores range from 60-90 is likely:

• Typical

• Median

• Outlier

• Average