<?xml version="1.0" encoding="UTF-8"?>
<codeBook version="1.2.2" ID="CHL_2014_ROER4D_v01_M" xml-lang="en" xmlns="http://www.icpsr.umich.edu/DDI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.icpsr.umich.edu/DDI http://www.icpsr.umich.edu/DDI/Version1-2-2.xsd">
<docDscr>
  <citation>
    <titlStmt>
      <IDNo>DDI_CHL_2014_ROER4D_v01_M</IDNo>
    </titlStmt>
    <prodStmt>
      <producer abbr="" affiliation="University of Cape Town" role="Metadata producer">DataFirst</producer>
      <producer abbr="DECDG" affiliation="The World Bank" role="Metadata adapted for Microdata Library">Development Economics Data Group</producer>
      <prodDate date="2018-07-25">2018-07-25</prodDate>
      <software version="v5">NADA</software>
    </prodStmt>
    <verStmt>
      <version>Version 01: This metadata was downloaded from the DataFirst website (https://www.datafirst.uct.ac.za/dataportal/index.php/catalog/central). The following two metadata fields were edited - Document and Survey ID.</version>
    </verStmt>
  </citation>
</docDscr>
<stdyDscr>
  <citation>
    <titlStmt>
      <titl>Open Educational Resources and Mathematics Skills 2014-2015</titl>
      <subTitl/>
      <altTitl>ROER4D 2014-2015</altTitl>
      <parTitl/>
      <IDNo>CHL_2014_ROER4D_v01_M</IDNo>
    </titlStmt>
    <rspStmt>
      <AuthEnty affiliation="University of Cape Town">Research on Open Educational Resources for Development (ROER4D)</AuthEnty>
    </rspStmt>
    <prodStmt>
      <copyright/>
      <software version="5.0" date="2022-07-25">NADA</software>
      <fundAg abbr="IDRC" role="Funding the study">International Development Research Centre</fundAg>
      <grantNo/>
    </prodStmt>
    <distStmt>
      <contact affiliation="" URI="support.data1st.org" email="support@data1st.org">DataFirst helpdesk</contact>
      <depDate date=""/>
      <distDate date=""/>
    </distStmt>
    <serStmt>
      <serName>Case study</serName>
      <serInfo/>
    </serStmt>
    <verStmt>
      <version date="2016">Version 01: Edited, anonymized dataset for public distribution.</version>
      <verResp/>
      <notes>Version 1 of the dataset was deposited with DataFirst on 5 July 2016.</notes>
    </verStmt>
    <biblCit format=""/>
    <notes/>
  </citation>
  <stdyInfo>
    <studyBudget/>
    <subject>
      <keyword vocab="" vocabURI="">Open textbooks</keyword>
      <keyword vocab="" vocabURI="">Open Educational Resources</keyword>
      <keyword vocab="" vocabURI="">Mathematics</keyword>
      <keyword vocab="" vocabURI="">Open Data</keyword>
    </subject>
    <abstract>This study examines the effect of the use of two Open Educational Resources (OER) (a Khan Academy online tutorial and an open textbook hosted on Wikibooks) on logical-mathematical outcomes for first and second-year students in higher education institutions in Chile. It also investigates perceptions of instructors and students about the use of OER, in order to understand how these resources are used and valued. Quantitative and qualitative methods were used to collect student performance data via a student survey, student focus groups, interviews with instructors, and sourcing institutional records.

Only the institutional records, focus group data and interview data are included in the final dataset. Student survey data is not made available for confidentiality reasons. Findings indicate that students in a contact-study mathematics course who used a Khan Academy online mathematics tutorial obtained better examination results than students who did not use any additional resources, or those who used the open textbook. Moreover, it was also found that instructors and students have positive perceptions about the use of Khan Academy and Wikibooks materials.This study is Sub-project 9 of the Research on Open Educational Resources for Development (ROER4D) project, hosted by the Centre for Innovation in Learning and Teaching (CILT) at the University of Cape Town, South Africa, and Wawasan Open University, Malaysia.</abstract>
    <sumDscr>
      <collDate date="2014-07" event="start" cycle=""/>
      <collDate date="2015-07" event="end" cycle=""/>
      <nation abbr="CHL">Chile</nation>
      <geogCover>The interviews and survey data were conducted at one institution in Chile and are not representative of the country as a whole.</geogCover>
      <geogUnit/>
      <anlyUnit>Individuals</anlyUnit>
      <universe>The survey covered students and instructors in the single institution involved in the study.</universe>
      <dataKind>Sample survey data [ssd]</dataKind>
    </sumDscr>
    <!-- qualityStatement - ddi2.5 - complex type
     
     This structure consists of two parts, standardsCompliance and otherQualityStatements. 
     In standardsCompliance list all specific standards complied with during the execution of this 
     study. Note the standard name and producer and how the study complied with the standard. 
     Enter any additional quality statements in otherQualityStatements.
     
     -->
    <qualityStatement>
      <standardsCompliance>
        <standard>
          <standardName/>
          <producer/>
        </standard>
        <complianceDescription/>
      </standardsCompliance>
      <otherQualityStatement/>
    </qualityStatement>
    <notes>The data covers perceptions of students and instructors of the value of OER materials over traditional teaching and learning materials in Chile. This was supplemented by record data from the institution on student performance.</notes>
    <!-- exPostEvaluation ddi2.5
      Use this section to describe evaluation procedures not address in data evaluation processes. 
      These may include issues such as timing of the study, sequencing issues, cost/budget issues, 
      relevance, instituional or legal arrangments etc. of the study. 
      
      The completionDate attribute holds the date the evaluation was completed. 
      The type attribute is an optional type to identify the type of evaluation with or without 
      the use of a controlled vocabulary.
    -->
    <exPostEvaluation completionDate="" type="">
      <evaluationProcess/>
      <outcomes/>
    </exPostEvaluation>
  </stdyInfo>
  <method>
    <dataColl>
      <timeMeth/>
      <!-- collectorTraining - DDI2.5
        
        Collector Training

        Describes the training provided to data collectors including internviewer training, process testing, 
        compliance with standards etc. This is repeatable for language and to capture different aspects of the 
        training process. The type attribute allows specification of the type of training being described.
        
        -->
      <collectorTraining type=""/>
      <frequenc/>
      <sampProc/>
      <sampleFrame>
        <sampleFrameName/>
        <custodian/>
        <universe/>
        <frameUnit isPrimary="">
          <unitType numberOfUnits=""/>
        </frameUnit>
        <updateProcedure/>
      </sampleFrame>
      <deviat/>
      <collMode>Face-to-face and internet [f2f-int]</collMode>
      <resInstru/>
      <!-- instrumentDevelopment - DDI2.5             
        Describe any development work on the data collection instrument. Type attribute allows for the optional use of a defined development type with or without use of a controlled vocabulary.
        -->
      <instrumentDevelopment type=""/>
      <collSitu>The interviews were conducted with two instructors and three students, and comprised 20-30 (modal average 22) questions (1-1.5 hour interviews). An online survey was also administered to measure student perceptions of the use of OE (49 responses).</collSitu>
      <actMin/>
      <ConOps/>
      <weight/>
      <cleanOps/>
    </dataColl>
    <notes/>
    <anlyInfo>
      <respRate/>
      <EstSmpErr/>
      <dataAppr/>
    </anlyInfo>
    <stdyClas/>
    <dataProcessing type=""/>
    <codingInstructions relatedProcesses="" type="">
      <txt/>
      <command formalLanguage=""/>
    </codingInstructions>
  </method>
  <dataAccs>
    <setAvail>
      <accsPlac URI=""/>
      <origArch/>
      <avlStatus/>
      <collSize/>
      <complete/>
      <fileQnty/>
      <notes/>
    </setAvail>
    <useStmt>
      <restrctn/>
      <contact affiliation="University of Cape Town" URI="support.data1st.org" email="support@data1st.org">DataFirst</contact>
      <citReq>Research on Open Educational Resources for Development. OER and Mathematics Skills (ROER4D Sub-project 9) [dataset]. Version 1. Cape Town: ROER4D [producer], 2016. Cape Town: DataFirst [distributor], 2016. 10.25828/2z1s-rc06</citReq>
      <deposReq/>
      <conditions>Public use data, available to all</conditions>
      <disclaimer>The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.</disclaimer>
    </useStmt>
    <notes/>
  </dataAccs>
  <notes/>
</stdyDscr>
<fileDscr ID="F1">
  <fileTxt>
    <fileName>oehems-2014-2015-blended</fileName>
    <fileCont>Impact analysis data (blended-mode learning)</fileCont>
    <dimensns>
      <caseQnty>0</caseQnty>
      <varQnty>10</varQnty>
    </dimensns>
    <dataChck></dataChck>
    <dataMsng></dataMsng>
    <verStmt>
      <version></version>
    </verStmt>
  </fileTxt>
  <notes></notes>
</fileDscr>
<fileDscr ID="F2">
  <fileTxt>
    <fileName>oehems-2014-2015-contact</fileName>
    <fileCont>Impact analysis data (contact-mode learning)</fileCont>
    <dimensns>
      <caseQnty>0</caseQnty>
      <varQnty>13</varQnty>
    </dimensns>
    <dataChck></dataChck>
    <dataMsng></dataMsng>
    <verStmt>
      <version></version>
    </verStmt>
  </fileTxt>
  <notes></notes>
</fileDscr>
<dataDscr>
<var ID="V1" name="id" files="F1" intrvl="contin">
  <labl>Student ID</labl>
  <imputation>Student ID</imputation>
  <security>Student ID</security>
  <embargo>Student ID</embargo>
  <respUnit>Student ID</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V2" name="group" files="F1" intrvl="discrete">
  <labl>Comparison group</labl>
  <imputation>Comparison group</imputation>
  <security>Comparison group</security>
  <embargo>Comparison group</embargo>
  <respUnit>Comparison group</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <catValu>1</catValu>
    <labl>KhanAcademy</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>3</catValu>
    <labl>None OER</labl>
    <catStat type="invd"/>
  </catgry>
  <catgry>
    <catValu>4</catValu>
    <labl>KhanAcademic</labl>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V3" name="gender" files="F1" intrvl="discrete">
  <labl>Gender</labl>
  <imputation>Gender</imputation>
  <security>Gender</security>
  <embargo>Gender</embargo>
  <respUnit>Gender</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <catValu>1</catValu>
    <labl>Female</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>2</catValu>
    <labl>Male</labl>
    <catStat type="invd"/>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V4" name="age" files="F1" intrvl="contin">
  <labl>Age</labl>
  <imputation>Age</imputation>
  <security>Age</security>
  <embargo>Age</embargo>
  <respUnit>Age</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V5" name="p_m" files="F1" intrvl="contin">
  <labl>Presentation mark - before the exam</labl>
  <imputation>Presentation mark - before the exam</imputation>
  <security>Presentation mark - before the exam</security>
  <embargo>Presentation mark - before the exam</embargo>
  <respUnit>Presentation mark - before the exam</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V6" name="exam" files="F1" intrvl="contin">
  <labl>Exam mark</labl>
  <imputation>Exam mark</imputation>
  <security>Exam mark</security>
  <embargo>Exam mark</embargo>
  <respUnit>Exam mark</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V7" name="f_m" files="F1" intrvl="contin">
  <labl>Final mark - after the exam</labl>
  <imputation>Final mark - after the exam</imputation>
  <security>Final mark - after the exam</security>
  <embargo>Final mark - after the exam</embargo>
  <respUnit>Final mark - after the exam</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V8" name="income" files="F1" intrvl="contin">
  <labl>student's household average monthly income (Chilean Pesos)</labl>
  <imputation>student's household average monthly income (Chilean Pesos)</imputation>
  <security>student's household average monthly income (Chilean Pesos)</security>
  <embargo>student's household average monthly income (Chilean Pesos)</embargo>
  <respUnit>student's household average monthly income (Chilean Pesos)</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V9" name="mot_ed" files="F1" intrvl="discrete">
  <labl>Mother's education level</labl>
  <imputation>Mother's education level</imputation>
  <security>Mother's education level</security>
  <embargo>Mother's education level</embargo>
  <respUnit>Mother's education level</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <labl>Did Not Study</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>1</catValu>
    <labl>1B: 1ST year of primary education</labl>
    <catStat type="invd"/>
  </catgry>
  <catgry>
    <catValu>2</catValu>
    <labl>2B: 2nd year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>3</catValu>
    <labl>3B: 3rd year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>4</catValu>
    <labl>4B: 4th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>5</catValu>
    <labl>5B: 5th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>6</catValu>
    <labl>6B: 6th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>7</catValu>
    <labl>7B: 7th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>8</catValu>
    <labl>8B: 8th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>9</catValu>
    <labl>1M: 1st year of secondary education</labl>
  </catgry>
  <catgry>
    <catValu>10</catValu>
    <labl>2M: 2nd year of secondary education</labl>
  </catgry>
  <catgry>
    <catValu>11</catValu>
    <labl>3M: 3rd year of secondary education</labl>
  </catgry>
  <catgry>
    <catValu>12</catValu>
    <labl>4Mhc: Secondary Education Completed (Scientific-Humanistic).</labl>
  </catgry>
  <catgry>
    <catValu>13</catValu>
    <labl>4Mtp: Secondary Education Completed (Technical-Professional).</labl>
  </catgry>
  <catgry>
    <catValu>14</catValu>
    <labl>Incom_CFT_IP: Incomplete Technical Training Center or Professional Institute.</labl>
  </catgry>
  <catgry>
    <catValu>15</catValu>
    <labl>Com_CFT_IP: Complete Technical Training Center or Professional Institute.</labl>
  </catgry>
  <catgry>
    <catValu>16</catValu>
    <labl>Incom_Uni: Incomplete University.</labl>
  </catgry>
  <catgry>
    <catValu>17</catValu>
    <labl>Com_Uni: Complete University.</labl>
  </catgry>
  <catgry>
    <catValu>18</catValu>
    <labl>Com_ Uni</labl>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V10" name="mot_ed_y" files="F1" intrvl="discrete">
  <labl>Mother's education years</labl>
  <imputation>Mother's education years</imputation>
  <security>Mother's education years</security>
  <embargo>Mother's education years</embargo>
  <respUnit>Mother's education years</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V11" name="id" files="F2" intrvl="contin">
  <labl>Student ID</labl>
  <imputation>Student ID</imputation>
  <security>Student ID</security>
  <embargo>Student ID</embargo>
  <respUnit>Student ID</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V12" name="group" files="F2" intrvl="discrete">
  <labl>Comparison group</labl>
  <imputation>Comparison group</imputation>
  <security>Comparison group</security>
  <embargo>Comparison group</embargo>
  <respUnit>Comparison group</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <catValu>1</catValu>
    <labl>Open Book</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>2</catValu>
    <labl>KhanAcademy</labl>
    <catStat type="invd"/>
  </catgry>
  <catgry>
    <catValu>3</catValu>
    <labl>None OER</labl>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V13" name="gender" files="F2" intrvl="discrete">
  <labl>Gender</labl>
  <imputation>Gender</imputation>
  <security>Gender</security>
  <embargo>Gender</embargo>
  <respUnit>Gender</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <catValu>1</catValu>
    <labl>Female</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>2</catValu>
    <labl>Male</labl>
    <catStat type="invd"/>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V14" name="age" files="F2" intrvl="contin">
  <labl>Age</labl>
  <imputation>Age</imputation>
  <security>Age</security>
  <embargo>Age</embargo>
  <respUnit>Age</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V15" name="region" files="F2" intrvl="discrete">
  <labl>Region of origin</labl>
  <imputation>Region of origin</imputation>
  <security>Region of origin</security>
  <embargo>Region of origin</embargo>
  <respUnit>Region of origin</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <catValu>1</catValu>
    <labl>RM: Metropolitan Region</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>2</catValu>
    <labl>II: Region of Antofagasta</labl>
    <catStat type="invd"/>
  </catgry>
  <catgry>
    <catValu>3</catValu>
    <labl>V: Region of ValparaÃ­so</labl>
  </catgry>
  <catgry>
    <catValu>4</catValu>
    <labl>VIII: Region of Bio Bio</labl>
  </catgry>
  <catgry>
    <catValu>5</catValu>
    <labl>IX: Region of AraucanÃ­a</labl>
  </catgry>
  <catgry>
    <catValu>6</catValu>
    <labl>XV: Region of Arica y Parinacota</labl>
  </catgry>
  <catgry>
    <catValu>7</catValu>
    <labl>.</labl>
  </catgry>
  <catgry>
    <catValu>8</catValu>
    <labl>III</labl>
  </catgry>
  <catgry>
    <catValu>9</catValu>
    <labl>XIV</labl>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V16" name="attendance" files="F2" intrvl="contin">
  <labl>Percentage of attendance of the student during the term</labl>
  <imputation>Percentage of attendance of the student during the term</imputation>
  <security>Percentage of attendance of the student during the term</security>
  <embargo>Percentage of attendance of the student during the term</embargo>
  <respUnit>Percentage of attendance of the student during the term</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V17" name="p_m" files="F2" intrvl="contin">
  <labl>Presentation mark - before the exam</labl>
  <imputation>Presentation mark - before the exam</imputation>
  <security>Presentation mark - before the exam</security>
  <embargo>Presentation mark - before the exam</embargo>
  <respUnit>Presentation mark - before the exam</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V18" name="exam" files="F2" intrvl="contin">
  <labl>Exam mark</labl>
  <imputation>Exam mark</imputation>
  <security>Exam mark</security>
  <embargo>Exam mark</embargo>
  <respUnit>Exam mark</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V19" name="f_m" files="F2" intrvl="contin">
  <labl>Final mark  - after the exam</labl>
  <imputation>Final mark  - after the exam</imputation>
  <security>Final mark  - after the exam</security>
  <embargo>Final mark  - after the exam</embargo>
  <respUnit>Final mark  - after the exam</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V20" name="income" files="F2" intrvl="contin">
  <labl>Student's householderage monthly income (Chilean Pesos)</labl>
  <imputation>Student's householderage monthly income (Chilean Pesos)</imputation>
  <security>Student's householderage monthly income (Chilean Pesos)</security>
  <embargo>Student's householderage monthly income (Chilean Pesos)</embargo>
  <respUnit>Student's householderage monthly income (Chilean Pesos)</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V21" name="mot_ed" files="F2" intrvl="discrete">
  <labl>Mother's education level</labl>
  <imputation>Mother's education level</imputation>
  <security>Mother's education level</security>
  <embargo>Mother's education level</embargo>
  <respUnit>Mother's education level</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <labl>Did Not Study</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>1</catValu>
    <labl>1B: 1ST year of primary education</labl>
    <catStat type="invd"/>
  </catgry>
  <catgry>
    <catValu>2</catValu>
    <labl>2B: 2nd year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>3</catValu>
    <labl>3B: 3rd year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>4</catValu>
    <labl>4B: 4th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>5</catValu>
    <labl>5B: 5th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>6</catValu>
    <labl>6B: 6th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>7</catValu>
    <labl>7B: 7th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>8</catValu>
    <labl>8B: 8th year of primary education</labl>
  </catgry>
  <catgry>
    <catValu>9</catValu>
    <labl>1M: 1st year of secondary education</labl>
  </catgry>
  <catgry>
    <catValu>10</catValu>
    <labl>2M: 2nd year of secondary education</labl>
  </catgry>
  <catgry>
    <catValu>11</catValu>
    <labl>3M: 3rd year of secondary education</labl>
  </catgry>
  <catgry>
    <catValu>12</catValu>
    <labl>4Mhc: Secondary Education Completed (Scientific-Humanistic).</labl>
  </catgry>
  <catgry>
    <catValu>13</catValu>
    <labl>4Mtp: Secondary Education Completed (Technical-Professional).</labl>
  </catgry>
  <catgry>
    <catValu>14</catValu>
    <labl>Incom_CFT_IP: Incomplete Technical Training Center or Professional Institute.</labl>
  </catgry>
  <catgry>
    <catValu>15</catValu>
    <labl>Com_CFT_IP: Complete Technical Training Center or Professional Institute.</labl>
  </catgry>
  <catgry>
    <catValu>16</catValu>
    <labl>Incom_Uni: Incomplete University.</labl>
  </catgry>
  <catgry>
    <catValu>17</catValu>
    <labl>Com_Uni: Complete University.</labl>
  </catgry>
  <catgry>
    <catValu>18</catValu>
    <labl>Com_ Uni</labl>
  </catgry>
  <varFormat type="numeric"/>
</var>
<var ID="V22" name="mot_ed_y" files="F2" intrvl="discrete">
  <labl>Mother's education years</labl>
  <imputation>Mother's education years</imputation>
  <security>Mother's education years</security>
  <embargo>Mother's education years</embargo>
  <respUnit>Mother's education years</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <varFormat type="numeric"/>
</var>
<var ID="V23" name="reg_rec" files="F2" intrvl="discrete">
  <labl>Region of the student (recoded)</labl>
  <imputation>Region of the student (recoded)</imputation>
  <security>Region of the student (recoded)</security>
  <embargo>Region of the student (recoded)</embargo>
  <respUnit>Region of the student (recoded)</respUnit>
  <sumStat type="vald"/>
  <sumStat type="invd"/>
  <catgry>
    <labl>Other Region</labl>
    <catStat type="vald"/>
  </catgry>
  <catgry>
    <catValu>1</catValu>
    <labl>Metropolitan Region</labl>
    <catStat type="invd"/>
  </catgry>
  <varFormat type="numeric"/>
</var>
</dataDscr></codeBook>
