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2017–18 School Survey on Crime and Safety (SSOCS)

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2017–18 School Survey on Crime and Safety (SSOCS) 2017–18 School Survey on Crime and Safety (SSOCS) NCES 2020-054 Public-Use Data File User’s Manual U.S. DEPARTMENT OF EDUCATION A Publication of the National Center for Education Statistics at IES 2017–18 School Survey on Crime and Safety (SSOCS) Public-Use Data File User’s Manual April 2020 Zoe Padgett Michael Jackson Samuel Correa Jana Kemp American Institutes for Research Aaron Gilary Alfred Meier Komba Gbondo Tugbawa Tracae McClure U.S. Census Bureau Rachel Hansen Project Officer National Center for Education Statistics NCES 2020-054 U.S. DEPARTMENT OF EDUCATION U.S. Department of Education Betsy DeVos Secretary Institute of Education Sciences Mark Schneider Director National Center for Education Statistics James L. Woodworth Commissioner The National Center for Education Statistics (NCES) is the primary federal entity for collecting, analyzing, and reporting data related to education in the United States and other nations. It fulfills a congressional mandate to collect, collate, analyze, and report full and complete statistics on the condition of education in the United States; conduct and publish reports and specialized analyses of the meaning and significance of such statistics; assist state and local education agencies in improving their statistical systems; and review and report on education activities in foreign countries. NCES activities are designed to address high-priority education data needs; provide consistent, reliable, complete, and accurate indicators of education status and trends; and report timely, useful, and high-quality data to the U.S. Department of Education, the Congress, the states, other education policymakers, practitioners, data users, and the general public. Unless specifically noted, all information contained herein is in the public domain. We strive to make our products available in a variety of formats and in language that is appropriate to a variety of audiences. You, as our customer, are the best judge of our success in communicating information effectively. If you have any comments or suggestions about this or any other NCES product or report, we would like to hear from you. Please direct your comments to NCES, IES, U.S. Department of Education Potomac Center Plaza (PCP) 550 12th Street SW Washington, DC 20202 April 2020 The NCES Home Page address is http://nces.ed.gov. The NCES Publications and Products address is http://nces.ed.gov/pubsearch. This report was prepared for the National Center for Education Statistics under Contract No. ED-IES-12-D- 0002 with the American Institutes for Research. Mention of trade names, commercial products, or organizations does not imply endorsement by the U.S. Government. Suggested Citation Padgett, Z., Jackson, M., Correa, S., Kemp, J., Gilary, A., Meier, A., Gbondo-Tugbawa, K., and McClure, T. (2020). School Survey on Crime and Safety: 2017–18 Public-Use Data File User’s Manual (NCES 2020- 054). National Center for Education Statistics, Institute of Education Sciences, U.S. Department of Education. Washington, DC. Retrieved [date] from http://nces.ed.gov/ pubsearch. Content Contact Rachel Hansen (202) 245-7082 [email protected] Contents Page List of Tables ...................................................................................................................... .v 1. Introduction ................................................................................................................... 1 1.1 Background of the Study .......................................................................................... 1 1.2 Questionnaire Development ..................................................................................... 2 1.2.1 Changes to Definitions for SSOCS:2018 ..................................................... 3 1.2.1.1 New Definitions Added for SSOCS:2018 ....................................... 3 1.2.1.2 Changes Made to Existing SSOCS Definitions ............................... 4 Changes to Items Between SSOCS:2016 and SSOCS:2018 ........................ 5 1.2.2.1 Items Added to SSOCS:2018 ........................................................... 5 1.2.2.2 SSOCS:2018 Items Modified From SSOCS:2016 .......................... 6 1.2.2.3 SSOCS:2016 Items Not Included in SSOCS:2018 .......................... 8 1.3 Survey Topics .......................................................................................................... 9 1.3.1 School Practices and Programs ..................................................................... 9 1.3.2 Parent and Community Involvement at School ......................................... 10 1.3.3 School Security Staff ................................................................................. 10 1.3.4 School Mental Health Services ................................................................... 10 1.3.5 Staff Training and Practices ....................................................................... 10 1.3.6 Limitations on Crime Prevention................................................................ 10 1.3.7 Frequency of Crime and Violence at School ............................................. 11 1.3.8 Incidents...................................................................................................... 11 1.3.9 Disciplinary Problems and Actions ........................................................... 11 1.3.10 School Characteristics: 2017–18 School Year ........................................... 11 1.4 Methodological Experiments ................................................................................. 11 1.4.1 Mode Experiment .......................................................................................... 12 1.4.2 Incentive Experiment .................................................................................... 12 2. Sample Design and Weighting .................................................................................... 13 2.1 Sampling Frame ..................................................................................................... 13 2.2 Sample Design ....................................................................................................... 13 2.3 Sample Size ............................................................................................................ 14 2.4 Stratification, Sample Selection, and Final Sample ............................................... 14 i Page 2.5 Using Reverse Keyfitz to Unduplicate with NTPS Sample ................................... 15 2.6 Assignment to Experimental Subsamples .............................................................. 16 2.7 Weighting and Sampling Error .............................................................................. 19 3. Data Collection Methods and Response Rates .......................................................... 21 3.1 Data Collection Activities ...................................................................................... 21 3.2 Data Retrieval ........................................................................................................ 24 3.3 Efforts to Increase Response Rates ........................................................................ 25 3.3.1 Interviewer Training .................................................................................. 26 3.4 Unit Response Rate ................................................................................................ 27 3.4.1 Completion Rate ........................................................................................ 28 3.4.2 Unweighted Response Rate ....................................................................... 28 3.4.3 Weighted Unit response Rate ..................................................................... 28 3.5 Analysis of Unit Nonresponse Bias ....................................................................... 30 3.6 Item Response Rates .............................................................................................. 31 3.7 Analysis of Item Nonresponse Bias ....................................................................... 31 3.8 Nonsampling Error ................................................................................................. 31 4. Data Preparation ......................................................................................................... 33 4.1 Questionnaire Check-in Process ............................................................................ 33 4.2 Editing Specifications ............................................................................................ 33 4.2.1 Range Specifications .................................................................................. 33 4.2.2 Consistency and Logic Edits ...................................................................... 34 4.3 Imputation ............................................................................................................... 34 4.3.1 Imputation Methods ................................................................................... 35 4.3.2 Imputation Order ........................................................................................ 35 4.3.3 Imputation Flags ........................................................................................ 36 4.4 Analysis of Disclosure Risk ................................................................................... 36 5. Guide to the Data File and Codebook ........................................................................ 37 5.1 Contents and Organization of the Public-Use Data
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