README FILE FOR Ruth Engs national data sets. It contains data collected by Engs from surveying health classes at colleges on a national level. Please note that calculations were accomplished primarily from the late 1970s to mid-1990s and were uploaded to IUSW in 2013 and 2021 resulting in some details unknown at this time. Created by: Dr. Ruth Clifford Engs during May - August 2021 Dept. Applied Health Science School of Public Health Rm 116 1025 E. 7th St. Indiana University, Bloomington, IN 47405-4801 Email: engs@iu.edu Other information available at: http://alcohol.iu.edu Researcher: Ruth C. Engs, Indiana University, Bloomington, In I. Dataset history From 1975 through 1994, Engs collected data from students in health classes using the Student Alcohol Questionnaire (SAQ) around the nation. In the later years other scales were added such as the Codependency Scale (CODE) and the Student Health and Lifestyle Questionnaire (SHLS) to gain additional material to test hypotheses concerning alcohol, drugs and other variables. From 1982 Engs' national datasets were combined with data collected by David J. Hanson for their national survey of student drinking knowledge, attitudes and behaviors. Engs databases were also used with other co-authors to test different hypotheses internationally and nationally. These latter studies included the development of the Codependency check list (CODE), and comparison with students from Australian, Scottish, Canadian, and Polish universities. The were also used to test hypotheses concerning drinking and illness, stress, exercise and lifestyles. Colleges were selected to represent the proportions of students attending four-year institutions of higher learning based on the "Yearbook of Higher Education" in terms of public or private (religiously affiliated as well as non-affiliated) ethnic mixtures, enrollments over and under 10,000, location in various community sizes (under 100,000, 100,500 thousand, over 500 thousand) and from all 50 states. To address various alcohol realted variables overtime, the same or equilavent colleges and universities were matched from each time period. For example, the same small Catholic college was selected for each time period. If it was not avaiable, another small Catholic college in the same region of the country, size of the community, etc. was selected. The demographic, alcohol knowledge and behaviors and other variables can be found in the questionnaires located in another section of IUScholarworks: https://scholarworks.iu.edu/dspace/handle/2022/17141. II. File List National Databases collected by Engs 1975 - 1991 ./ALCB75.txt - 1975 national database for alcohol behavior collected by Engs ./ALCK75.txt - 1975 national database for knowledge about alcohol collected by Engs ./alcds24.txt - 1975 and 1982 national data written in 1982 format collected by Engs ./ALCDAT2.txt - 1982 national database collected by Engs ./ENG84AL.txt - 1984 national database collected by Engs ./ENGAL84.txt - 1984 national database collected by Engs ./ENGAL85.txt - 1985 national database collected by Engs ./ENGAL87.txt - 1987 national database collected by Engs ./ENGAL94 - 1994 national database collected by Engs ./1974 variables writtren into 1982 format NOTE: These corrupted files are included in this dataset as a safety mechanism against inadvertent loss of crucial data points, which may have been introduced during the data cleaning process that yielded the databases. ./Corrupted_ENGAL84.txt - transferred off of magnetic tape to unix mainframe computer in the early 2000's. Data cleaning process yielded engal84. ./Corrupted_ENGAL85.txt - transferred off of magnetic tape to unix mainframe computer in the early 2000's. Data cleaning process yielded engal85. ./Corrupted_engal87 - the version of engal87 transferred off of magnetic tape to unix mainframe computer in the early 2000's. Data cleaning process yielded engal84 ./corrupted_alcds24.txt - 1975 and 1982 national data written in 1982 format collected by Engs transferred off of magnetic tape to unix mainframe computer which became corrupted. Data cleaning process yielded 1975 and 1982 Engs data. ./corrupted_ ALCDAT2.txt - 1982 national database collected by Engs. Two cases removed due to un-repariable corruption.Data cleaning process yielded ALCDS2.txt ./BRIEF READING OF VARIABLES - basic information of how to read variables on the data files. ./README Engs data files from 1970s-mid 1990s - This current file that documents the entire dataset:http://hdl.handle.net/2022/26451 III. Specifics of data Data were migrated from paper format in the following order: Paper surveys > cards > magnetic tape or direct input into Control Data Corporation (CDC) main frame computer > Unix mainframe > CD-Rom and PC. All data created in SPSS (software versions from 1983-1996), were transferred to Unix via SPSS for Unix. George Turner UITS transferred the early data bases from the tape into digital format for the Unix computer in 2002. Look at file "oldtape." Raw data were responses to questionnaires, submitted on paper. The questionnaire information was entered onto punch cards from 1975 through the early 1980s and then into the computer by work study students at Indiana University. Some examples of the raw analog data are in Engs’ papers in the Indiana University Archives, but the rest were destroyed. **Please note that due to change in technology that went from cards to magnetic tapes used with various mainframe computers, some data bases were lost or corrupted with extraneous special characters. Databases were reformatted to eliminate these characters by IUSW staff including Stacy Konkiel and Ethan Fridmanski. These data bases were retrieved in 2013 and 2021 from copies in a personal computer and may not accurately represent the data collected. Use data with caution in any calculations. An output file was used to inform data for the publications. IV. Publications and presentations from this data. Numerous articles, book chapters, and presentations, were published or delivered from these databases over two decades. Representative samples can be found at https://scholarworks.iu.edu/dspace/handle/2022/16829. Details of the study design and reliability of the behavior portion of the 1975 instrument are found at: http://hdl.handle.net/2022/17455 Details of the study design and reliability of the knowledge portion of the 1975 instrument are found at: http://hdl.handle.net/2022/17490