The research study paper from the University of Michigan defines the markers of nontraditional students as predictor variables to test their hypotheses, which are also translated into LARC format.

- age 20 and above: STDNT_BIRTH_YR (students below 20 years old do not count)
- first generation students: PRNT MAX ED LVL DES (non-first generation students do not count)
- international students: STDNT_CTZN_STAT_CD (domestic students do not count)
- lower income students: EST GROSS FAM INC DES (students with income above 75k do not count)
- part-time students: ACAD_LOAD_SHORT_DES (full-time students do not count)
- students from single-parent households: SNGL PRNT IND (students from other households do not count)
- transfer students: ENTRY_TYP_SHORT_DES (freshmen students do not count)
- underrepresented minorities: STDNT UNDREP MNRTY IND (students of majority ethnicities do not count)
- veteran students: ADMSSN_VTRN_IND (non-veterans do not count)
- athlete students: ATHLTC_PRTCPT_SPORT_SHORT_DES (non-athletes do not count)

Predictor Variables in LARC

The LARC dictionary provides the following information for each data element:
- Physical element name
- Logical element name
- Format type
- Format length
- Data sets
- Table locations
- Element definition
- Examples of valid values 

University of Michigan - Ann Arbor

LARC is a research-focused data set that contains information on student demographics. Data in LARC are comprised of 3 categories: 
- Student Info: Data which is constant throughout a student’s academic career (such as date of birth, ethnicity, SAT test scores, high school GPA, etc)
- Student Term Info: Data that can change from term to term (such as term GPA, enrolled credits, major, etc)
- Student Class Info: Data that can change from class to class (such as the total number of students enrolled in a particular class, the grade given by instructors to students, meeting locations, etc)


Learning Analytics Data Architecture (LARC)

LARC Data Elements

LARC tables are composed of LARC data elements and provide the following information for each table in the data set:
- Physical table name
- Logical table name 
- Data set locations
- Table description
LARC diagrams are used to show the logical relationships between different LARC tables; a logical link between two tables indicates that there is a direct data relationship between the two tables. Physically, any tables with a common element can be joined with a connecting line.

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