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Stata Class Notes 3.0
Codebook for LA High School Data

Stata command to read data:

use http://www.ats.ucla.edu/stat/stata/notes_old/lahigh

Some Research Questions:

  1. What does the overall data look like?
  2. What is the demographic composition of this sample?
  3. Do the demographics vary by school?
  4. What do the test scores look like?
  5. Do the schools differ on the test scores?
  6. Do the schools significantly differ on the test scores?
  7. Are absences related to other variables?

Codebook

Variable NameVariableValues
idStudent ID
number		Each student has a unique four digit ID number
Records from school Alpha begin with 1
and records from School Beta begin with 2
genderGender1 = Female
2 = Male
ethnicEthnicity1 = Native American
2 = Asian
3 = African-American
4 = Hispanic
5 = White
6 = Filipino
7 = Pacific Islander
schoolSchool1 = School Alpha (n=159)
2 = School Beta (n=157)
mathprCTBS Math
PR Score		percentile rank
langprCTBS Lang
PR Score		percentile rank
mathnceCTBS Math
NCE Score		NCE1 Score
langnceCTBS Language
NCE Score		NCE1 Score
bilingBllingual Status0 = No Bilingual Status (Native English Speaker)
1 = IFEP (Foreign language spoken in home but student tested English Proficient)
2 = RFEP (Formerly LEP but transitioned to English)
3 = LEP (Currently in Bilingual Program)
daysabsNumber of days
absent		Number of days

1NCE stands for normal curve equivalent. It's a type of standardized score with mean=50 and standard deviation=21.06.

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30Sep99