Credits earned toward a degree

Level of education

Learning style as defined on a GEFT (group embedded figures test with scales of 0-21 based on number of questions answered correctly)

Shoe size (American)

Socio-economic status

Time in a 40-yd dash

Grade point average

Gender

Class rank

Which type of data has a sequence, yet there is no true zero, and the sequences are not necessarily consistently spaced?

Which type of data is typically categorical?

Which type of measurement has a true zero point which represents "zero" or absence of the thing?

Which type of measurement is equally spaced but does not have a true zero?