Identify whether each of the following variables in the STAR data is numeric/qua

Question

Identify whether each of the following variables in the STAR data is numeric/quantitative or categorical/qualitative, and its level of measurement.
sch = school ID number
grade = the grade a student is in (K = kindergarten, 1 = 1st grade, and so on)
cltype = classroom type (small, regular, regular with a teaching aide)
exp = teacher's teaching experience in years
schtype = school type (inner-city, suburb, rural and urban)
ses = socioeconomic status measured as eligible for free/reduced lunch (F) or not (N). Eligibility for free/reduced lunch is usually taken to be a proxy for an economically disadvantaged student.
scaled reading scores

scaled mathematics scores

Explanation / Answer

sch = School ID - categorical variable, level of measurement - nominal

grade - categorical, level of measurement - ordinal

cltype - categorical, level of measurement - nominal

exp - quantitative, level of measurement - ratio

schtype - categorical, level of measurement - nominal

ses - categorical, level of measurement - nominal

scaled reading scores - quantitative, level of measurement - ratio

scaled mathematics score - quantitative, level of measurement - ratio

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