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Early Childhood Longitudinal Study  Early Childhood Longitudinal Study (ECLS)

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Open  Data Products

ECLS-K:2011 Fifth-Grade Hearing Evaluations Component Restricted-Use Data File
NCES Number: 2019018   Release Date: October 11, 2019  

ECLS-K:2011 Public-Use Kindergarten-Fifth Grade Data File and Electronic Codebook
NCES Number: 2019050   Release Date: July 12, 2019  

ECLS-K:2011 Restricted-Use Kindergarten-Fifth Grade Data File and Electronic Codebook
NCES Number: 2019100   Release Date: February 22, 2019  

ECLS-K:2011 Restricted-Use Kindergarten-Fourth Grade Data File and Electronic Codebook
NCES Number: 2018083   Release Date: May 31, 2018  

ECLS-K:2011 Public-Use Kindergarten-Fourth Grade Data File and Electronic Codebook
NCES Number: 2018033   Release Date: March 27, 2018  

ECLS-K:2011 Third-Grade Hearing Evaluations Component Restricted-Use Data File
NCES Number: 2018091   Release Date: March 12, 2018  

ECLS-K:2011 Public-Use Kindergarten-Second Grade Data File and Electronic Codebook
NCES Number: 2017286   Release Date: March 1, 2017  

ECLS-K:2011 Restricted-Use Kindergarten-Third Grade Data File and Electronic Codebook
NCES Number: 2016080   Release Date: October 17, 2016  

The Condition of Education 2016
NCES Number: 2016144   Release Date: May 26, 2016  

ECLS-K:2011 Second-Grade Hearing Evaluations Component Restricted-Use Data File
NCES Number: 2016183   Release Date: February 3, 2016  

ECLS-K:2011 Restricted-Use Kindergarten-Second Grade Data File and Electronic Codebook
NCES Number: 2015050   Release Date: July 10, 2015  

ECLS-K:2011 Public-Use Kindergarten-First Grade Data File and Electronic Codebook
NCES Number: 2015086   Release Date: April 22, 2015  

ECLS-K:2011 Restricted-Use Kindergarten-First Grade Data File and Electronic Codebook
NCES Number: 2015070   Release Date: November 7, 2014  

ECLS-K:2011 Restricted-Use Kindergarten Data File and Electronic Codebook
NCES Number: 2013060   Release Date: July 17, 2013  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Kindergarten Through Fifth Grade Approaches to Learning and Self-Description Questionnaire (SDQ) Items and Public-Use Data Files
NCES Number: 2010070   Release Date: July 28, 2010  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Kindergarten Through Fifth Grade Parent and Teacher Social Rating Scale (SRS) Items and Restricted-Use Data Files
NCES Number: 2010071   Release Date: July 28, 2010  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Correct Theta Scores for the Kindergarten through Eighth Grade Data Collections Errata
NCES Number: 2010052   Release Date: March 2, 2010  

Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) Longitudinal 9-Month-Kindergarten 2007 Restricted-Use Data File and Electronic Codebook DVD
NCES Number: 2010011   Release Date: December 31, 2009  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Kindergarten Through Eighth Grade Full Sample Public-Use Data and Documentation
NCES Number: 2009005   Release Date: July 17, 2009  

ECLS-K Eighth Grade Restricted-Use Data File and Electronic Codebook
NCES Number: 2009006   Release Date: March 10, 2009  

Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) Longitudinal 9-Month-Preschool Restricted-Use Data File and Electronic Codebook
NCES Number: 2008034   Release Date: December 12, 2007  

Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), 9-Monthó2-year Residential ZIP Code Restricted-Use Data File
NCES Number: 2008038   Release Date: December 3, 2007  

Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) 9-Month Twin Triad Restricted-Use Data File
NCES Number: 2007032   Release Date: June 21, 2007  

Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) Longitudinal 9-Month-2-Year Restricted-Use Data File and Electronic Codebook
NCES Number: 2006044   Release Date: August 29, 2006  

ECLS-K Longitudinal Kindergarten-Fifth Grade Public-Use Data File and Electronic Code Book
NCES Number: 2006035   Release Date: May 5, 2006  

ECLS-K Fifth Grade Restricted-Use Data File and Electronic Codebook
NCES Number: 2006033   Release Date: March 27, 2006  

ECLS-K Fifth Grade Public-Use Data File and Electronic Codebook
NCES Number: 2006034   Release Date: March 27, 2006  

ECLS-K Longitudinal Kindergarten-Third Grade Public-Use Data File and Electronic Code Book
NCES Number: 2004089   Release Date: September 14, 2004  

ECLS-K, Base Year Public-Use Data File, Kindergarten Class of 1998-99: Data Files and Electronic Code Book (Child, Teacher, School Files), and User's Manual
NCES Number: 2001029rev   Release Date: August 18, 2004  

ECLS-K Third Grade Public-Use Data File and Electronic Code Book
NCES Number: 2004002   Release Date: July 7, 2004  

ECLS-K Third Grade Restricted-Use Child File
NCES Number: 2003002   Release Date: June 4, 2004  

ECLS-K Longitudinal Kindergarten-First Grade Public-Use Data Files and Electronic Code Book
NCES Number: 2002148   Release Date: April 30, 2002  

CD-ROM: ECLS-K First Grade Public-Use Data Files and Electronic Code Book
NCES Number: 2002134   Release Date: February 19, 2002  

ECLS-K First Grade Restricted-Use Child File
NCES Number: 2002127   Release Date: December 12, 2001  

ECLS-K Base Year Restricted-Use Salary and Benefits File
NCES Number: 2001014   Release Date: April 24, 2001  

ECLS-K Base Year Restricted-Use Student Record Abstract File
NCES Number: 2001016   Release Date: April 24, 2001  

ECLS-K Restricted-Use Base Year: Child File, Teacher File, and School File
NCES Number: 2000097   Release Date: March 21, 2001  

ECLS-K Base Year Restricted-Use: Special Education Child File
NCES Number: 2001015   Release Date: March 21, 2001  

ECLS-K Base Year Restricted-Use Head Start File
NCES Number: 2001025   Release Date: March 15, 2001  

Open  Reports

Digest of Education Statistics, 2020
NCES Number: 2022009   Release Date: February 10, 2022  

Digest of Education Statistics, 2019
NCES Number: 2021009   Release Date: February 25, 2021  

Indicators of School Crime and Safety: 2019
NCES Number: 2020063   Release Date: July 15, 2020  

Digest of Education Statistics, 2018
NCES Number: 2020009   Release Date: December 24, 2019  

Digest of Education Statistics, 2017
NCES Number: 2018070   Release Date: January 30, 2019  

Barriers to Parent-School Involvement for Early Elementary Students
NCES Number: 2017165   Release Date: January 23, 2019  

The Condition of Education 2018
NCES Number: 2018144   Release Date: May 23, 2018  

Digest of Education Statistics, 2016
NCES Number: 2017094   Release Date: February 20, 2018  

The Condition of Education 2017
NCES Number: 2017144   Release Date: May 25, 2017  

Indicators of School Crime and Safety: 2016
NCES Number: 2017064   Release Date: May 16, 2017  

Digest of Education Statistics, 2015
NCES Number: 2016014   Release Date: December 8, 2016  

Primary Early Care and Education Arrangements and Achievement at Kindergarten Entry
NCES Number: 2016070   Release Date: June 30, 2016  

Digest of Education Statistics, 2014
NCES Number: 2016006   Release Date: April 28, 2016  

Digest of Education Statistics, 2013
NCES Number: 2015011   Release Date: May 7, 2015  

Digest of Education Statistics, 2012
NCES Number: 2014015   Release Date: December 31, 2013  

Digest of Education Statistics, 2011
NCES Number: 2012001   Release Date: June 13, 2012  

Digest of Education Statistics, 2010
NCES Number: 2011015   Release Date: April 5, 2011  

Status and Trends in the Education of Racial and Ethnic Groups
NCES Number: 2010015   Release Date: July 14, 2010  

Digest of Education Statistics, 2009
NCES Number: 2010013   Release Date: April 7, 2010  

Digest of Education Statistics, 2008
NCES Number: 2009020   Release Date: March 18, 2009  

Digest of Education Statistics, 2007
NCES Number: 2008022   Release Date: March 25, 2008  

Status and Trends in the Education of Racial and Ethnic Minorities
NCES Number: 2007039   Release Date: September 12, 2007  

Digest of Education Statistics, 2006
NCES Number: 2007017   Release Date: July 26, 2007  

Digest of Education Statistics, 2005
NCES Number: 2006030   Release Date: August 10, 2006  

Teacher Qualifications, Instructional Practices, and Reading and Mathematics Gains of Kindergartners
NCES Number: 2006031   Release Date: March 28, 2006  

Education Statistics Quarterly-Vol. 7 Issues 1&2
NCES Number: 2006614   Release Date: January 17, 2006  

Education Statistics Quarterly-Vol. 6 Issue 4
NCES Number: 2006613   Release Date: November 28, 2005  

Digest of Education Statistics, 2004
NCES Number: 2006005   Release Date: October 12, 2005  

Education Statistics Quarterly-Vol. 6 Issue 3
NCES Number: 2005612   Release Date: July 26, 2005  

Education Statistics Quarterly-Vol. 6 Issues 1&2
NCES Number: 2005611   Release Date: February 4, 2005  

Digest of Education Statistics, 2003
NCES Number: 2005025   Release Date: December 30, 2004  

From Kindergarten Through Third Grade: Children's Beginning School Experiences
NCES Number: 2004007   Release Date: July 26, 2004  

Full-day and Half-day Kindergarten in the United States: Findings from the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99
NCES Number: 2004078   Release Date: June 7, 2004  

The Condition of Education in Brief 2004
NCES Number: 2004076   Release Date: June 1, 2004  

Kindergarten Teachers: Public and Private School Teachers of the Kindergarten Class of 1998-99
NCES Number: 2004060   Release Date: March 22, 2004  

Education Statistics Quarterly-Vol. 5 Issue 1
NCES Number: 2003607   Release Date: July 11, 2003  

Digest of Education Statistics, 2002
NCES Number: 2003060   Release Date: June 23, 2003  

Young Childrenís Access to Computers in the Home and at School in 1999 and 2000
NCES Number: 2003036   Release Date: March 7, 2003  

Children's Reading and Mathematics Achievement in Kindergarten and First Grade
NCES Number: 2002125   Release Date: March 7, 2002  

Digest of Education Statistics, 2001
NCES Number: 2002130   Release Date: March 1, 2002  

The Kindergarten Year
NCES Number: 2001023   Release Date: December 1, 2000  

America's Kindergartners
NCES Number: 2000070   Release Date: February 17, 2000  

Open  Shorter Publications

Findings From the Fifth-Grade Round of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011)
NCES Number: 2019130   Release Date: February 19, 2019  

English Language Program Participation Among Students in the Kindergarten Class of 2010Ė11: Spring 2011 to Spring 2012
NCES Number: 2018086   Release Date: July 17, 2018  

The Summer After Kindergarten: Childrenís Experiences by Socioeconomic Characteristics
NCES Number: 2018160   Release Date: May 22, 2018  

Findings From the Fourth-Grade Round of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011)
NCES Number: 2018094   Release Date: March 27, 2018  

Findings From the Third-Grade Round of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011)
NCES Number: 2016094   Release Date: May 12, 2016  

Findings From the Second-Grade Rounds of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011)
NCES Number: 2015077   Release Date: May 14, 2015  

Findings From the First-Grade Rounds of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011)
NCES Number: 2015109   Release Date: November 6, 2014  

First-Time Kindergartners in 2010-11: First Findings From the Kindergarten Rounds of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011)
NCES Number: 2012049   Release Date: July 25, 2012  

Reading, Mathematics, and Science Achievement of Language-Minority Students in Grade 8
NCES Number: 2012028   Release Date: April 24, 2012  

Eighth-Grade Algebra: Findings From the Eighth-Grade Round of the Early Childhood Longitudinal Study, Kindergarten Class of 1998Ė99 (ECLS-K)
NCES Number: 2010016   Release Date: October 6, 2010  

The Children Born in 2001 at Kindergarten Entry: First Findings From the Kindergarten Data Collections of the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B)
NCES Number: 2010005   Release Date: October 28, 2009  

Mathematics Achievement of Language-Minority Students During the Elementary Years
NCES Number: 2009036rev   Release Date: December 16, 2008  

Expectations and Reports of Homework for Public School Students in the First, Third, and Fifth Grades
NCES Number: 2009033   Release Date: December 2, 2008  

Eighth Grade: First Findings From the Final Round of the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K)
NCES Number: 2008088   Release Date: September 24, 2008  

Preschool: First Findings From the Third Follow-up of the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B)
NCES Number: 2008025   Release Date: October 30, 2007  

Demographic and School Characteristics of Students Receiving Special Education in the Elementary Grades
NCES Number: 2007005   Release Date: July 26, 2007  

Timing and Duration of Student Participation in Special Education in the Primary Grades
NCES Number: 2007043   Release Date: March 21, 2007  

Age 2: Findings From the 2-Year-Old Follow-up of the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B)
NCES Number: 2006043   Release Date: August 29, 2006  

Fathers of U.S. Children Born in 2001: Findings from the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), E.D. Tab
NCES Number: 2006002   Release Date: July 19, 2006  

Arts Instruction of Public School Students in the First and Third Grades
NCES Number: 2006099   Release Date: July 18, 2006  

The Early Reading and Mathematics Achievement of Children Who Repeated Kindergarten or Who Began School a Year Late
NCES Number: 2006064   Release Date: May 12, 2006  

Fifth Grade: Findings from the Fifth-Grade Follow-Up of the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99
NCES Number: 2006038   Release Date: March 24, 2006  

Instructional Focus in First Grade
NCES Number: 2006056   Release Date: March 9, 2006  

Regional Differences in Kindergartnersí Early Education Experiences
NCES Number: 2005099   Release Date: June 23, 2005  

Children Born in 2001: First Results from the Base Year of the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B)
NCES Number: 2005036   Release Date: November 18, 2004  

The Summer after Kindergarten: Childrenís Activities and Library Use by Socioeconomic Status
NCES Number: 2004037   Release Date: September 9, 2004  

The Condition of Education Special Analysis: Reading -Young Children's Achievement and Classroom Experiences
NCES Number: 2003070   Release Date: September 2, 2003  

Schools' Use of Assessments for Kindergarten Entrance and Placement: 1998-99
NCES Number: 2003004   Release Date: March 24, 2003  

Findings from the Condition of Education 2000: Entering Kindergarten
NCES Number: 2001035   Release Date: January 22, 2001  

Open  Technical/Methodological

Early Childhood Longitudinal Study, Kindergarten Class of 2010-11, Third-Grade, Fourth-Grade, and Fifth-Grade Psychometric Report
NCES Number: 2020123   Release Date: March 30, 2020  

User's Manual for the ECLS-K:2011 Fifth-Grade Hearing Evaluations Component Restricted-Use Data File
NCES Number: 2019019   Release Date: October 11, 2019  

Userís Manual for the ECLS-K:2011 Kindergarten-Fifth Grade Data File and Electronic Codebook, Public Version
NCES Number: 2019051   Release Date: July 12, 2019  

Userís Manual for the ECLS-K:2011 Kindergarten-Fifth Grade Data File and Electronic Codebook, Restricted Version
NCES Number: 2019101   Release Date: February 25, 2019  

Early Childhood Longitudinal Study, Kindergarten Class of 2010-11, First-Grade and Second-Grade Psychometric Report
NCES Number: 2018183   Release Date: July 26, 2018  

Early Childhood Longitudinal Study, Kindergarten Class of 2010-11, Kindergarten Psychometric Report
NCES Number: 2018182   Release Date: July 26, 2018  

Userís Manual for the ECLS-K:2011 Kindergarten-Fourth Grade Data File and Electronic Codebook, Restricted Version
NCES Number: 2018082   Release Date: June 1, 2018  

Userís Manual for the ECLS-K:2011 Kindergarten-Fourth Grade Data File and Electronic Codebook, Public Version
NCES Number: 2018032   Release Date: March 27, 2018  

Userís Manual for the ECLS-K:2011 Kindergarten-Third Grade Data File and Electronic Codebook, Public Version
NCES Number: 2018034   Release Date: March 27, 2018  

User's Manual for the ECLS-K:2011 Third-Grade Hearing Evaluations Component Restricted-Use Data File
NCES Number: 2018090   Release Date: March 9, 2018  

Userís Manual for the ECLS-K:2011 Kindergarten- Second Grade Data File and Electronic Codebook, Public Version
NCES Number: 2017285   Release Date: February 28, 2017  

Userís Manual for the ECLS-K:2011 Kindergarten-Third Grade Data File and Electronic Codebook, Restricted Version
NCES Number: 2016092   Release Date: October 17, 2016  

User's Manual for the ECLS-K:2011 Second-Grade Hearing Evaluations Component Restricted-Use Data File
NCES Number: 2016184   Release Date: February 3, 2016  

Userís Manual for the ECLS-K:2011 Kindergarten-Second Grade Data File and Electronic Codebook, Restricted Version
NCES Number: 2015049   Release Date: July 10, 2015  

Userís Manual for the ECLS-K:2011 Kindergarten- First Grade Data File and Electronic Codebook, Public Version
NCES Number: 2015078   Release Date: April 23, 2015  

Userís Manual for the ECLS-K:2011 Kindergarten Data File and Electronic Codebook, Public Version
NCES Number: 2015074   Release Date: April 23, 2015  

Userís Manual for the ECLS-K:2011 Kindergarten-First Grade Data File and Electronic Codebook
NCES Number: 2015069   Release Date: November 7, 2014  

Userís Manual for the ECLS-K:2011 Kindergarten Data File and Electronic Codebook
NCES Number: 2013061   Release Date: July 17, 2013  

Combined User's Manual for the ECLS-K Eighth-Grade and K-8 Full Sample Data Files and Electronic Codebooks
NCES Number: 2009004   Release Date: September 16, 2010  

Errata Sheet: Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) Twin imputation problem in 9-month and 2-year data
NCES Number: 2010067   Release Date: May 18, 2010  

Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) Preschool--Kindergarten 2007 Psychometric Report
NCES Number: 2010009   Release Date: April 16, 2010  

Early Childhood Longitudinal Study, Kindergarten Class of 1998Ė99 (ECLS-K), Eighth-Grade Methodology Report
NCES Number: 2009003   Release Date: September 30, 2009  

Early Childhood Longitudinal Study, Kindergarten Class of 1998 - 99 (ECLS-K), Psychometric Report for the Eighth Grade
NCES Number: 2009002   Release Date: September 25, 2009  

User's Manual for the ECLS-B Longitudinal 9-Month--Preschool Restricted-Use Data File and Electronic Codebook
NCES Number: 2008024   Release Date: December 12, 2007  

Early Childhood Longitudinal Study, Birth Cohort (ECLSĖB) Psychometric Report for the 2-year Data Collection
NCES Number: 2007084   Release Date: August 7, 2007  

Observations of Mother-Twin Interactions at 9 Months: User's Manual for the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) 9-month Twin Triad Restricted-Use Data File
NCES Number: 2007047   Release Date: June 21, 2007  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Base Year Public-Use ECB Errata
NCES Number: 2001029e   Release Date: November 1, 2006  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Child Disability Composite Errata and ECB Functionality Errata for Data Products Released 2000 through 2006
NCES Number: 2007031   Release Date: October 31, 2006  

ECLS-K: Combined User's Manual for the ECLS-K Fifth-Grade Data Files and Electronic Codebooks
NCES Number: 2006032   Release Date: March 27, 2006  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Fifth Grade Methodology Report
NCES Number: 2006037   Release Date: December 16, 2005  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Psychometric Report for the Fifth Grade
NCES Number: 2006036rev   Release Date: November 15, 2005  

Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) Psychometric Report for the Third Grade
NCES Number: 2005062   Release Date: August 5, 2005  

Early Childhood Longitudinal Study, Kindergarten Class of 1998Ė99 (ECLS-K): Third Grade Methodology Report
NCES Number: 2005018   Release Date: August 4, 2005  

User's Manual for the ECLS-K Longitudinal Kindergarten-Third Grade Public-Use Data Files and Electronic Codebook
NCES Number: 2004088   Release Date: September 14, 2004  

User's Manual for the ECLS-K Third Grade Public-Use Data Files and Electronic Code Book
NCES Number: 2004001   Release Date: July 7, 2004  

User's Manual for the ECLS-K Longitudinal Kindergarten-First Grade Public-Use Data Files and Electronic Codebook
NCES Number: 2002149   Release Date: April 30, 2002  

User's Manual for the ECLS-K First Grade Public-Use Data Files and Electronic Codebook
NCES Number: 2002135   Release Date: February 19, 2002  

Open  Working Papers

Early Childhood Longitudinal Study - Kindergarten Class of 1998-99 (ECLS-K), Psychometric Report for Kindergarten Through First Grade
NCES Number: 200205   Release Date: September 10, 2002  

Papers from the Early Childhood Longitudinal Studies Program Presented at the 2001 AERA and SRCD Meetings
NCES Number: 200106   Release Date: July 30, 2001  

Measuring Father Involvement In Young Children's Lives: Recommendations for a Fatherhood Module for the ECLS-B
NCES Number: 200102   Release Date: April 17, 2001  

Measures of Socio-Emotional Development in Middle Childhood
NCES Number: 200103   Release Date: April 17, 2001  

Selected Papers on Education Surveys:Papers Presented at the 1998 and 1999 ASA and 1999 AAPOR Meetings
NCES Number: 200004   Release Date: August 7, 2000  

A Birth Cohort Study: Conceptual and Design Considerations and Rationale
NCES Number: 199901   Release Date: February 16, 1999  

Working Paper: Measuring the Quality of Program Environments in Head Start and Other Early Childhood Programs
NCES Number: 9736   Release Date: November 7, 1997  

Formulating A Design for the ECLS: A Review of Longitudinal Studies
NCES Number: 9724   Release Date: September 11, 1997  

Assessment of Social Competence, Adaptive Behaviors, and Approaches to Learning with Young Children
NCES Number: 9618   Release Date: August 30, 1996  

How Accurate are Teacher Judgments of Students' Academic Performance?
NCES Number: 9608   Release Date: April 30, 1996