Question

What is the level of measurement of the following variables?

• The number of downloads of different bands’ songs on iTunes
• The names of the bands that were downloaded
• Their positions in the download chart
• The money earned by the bands from the downloads
• The weight of drugs bought by the bands with their royalties
• The type of drugs bought by the bands with their royalties
• The phone numbers that the bands obtained because of their fame
• The gender of the people giving the bands their phone numbers
• The instruments played by the band members
• The time they had spent learning to play their instruments

Answer 1

Nominal variable is for names or types, ordinal is for ordered data, interval is for values without a true zero and ratio is for values with true zero.

• The number of downloads of different bands’ songs on iTunes - Ratio
• The names of the bands that were downloaded - Nominal
• Their positions in the download chart - Ordinal
• The money earned by the bands from the downloads - Ratio
• The weight of drugs bought by the bands with their royalties - Ratio
• The type of drugs bought by the bands with their royalties - Nominal
• The phone numbers that the bands obtained because of their fame - Nominal (Identifier)
• The gender of the people giving the bands their phone numbers - Nominal (dichotomous)
• The instruments played by the band members - Nominal
• The time they had spent learning to play their instrument - Ratio