Randomized experiments are commonly used to evaluate if particular interventions improve student achievement. While these experiments can establish that a treatment actually "causes" changes, typically the participants are not randomly selected from a well-defined population and therefore the results do not readily generalize. Three…

A crucial question in any study is how representative the sample is of the population being studied at the time of the interview. This is of particular concern when the study is based on a follow-up of a sample of respondents initially interviewed for other purposes. This study evaluated the representativeness of a sample of elderly female…

Survey data concerning teacher education program graduates were used to demonstrate the advantages of a stratified random sampling approach, with followup, relative to a one-shot mailing to an entire population. Sampling issues involved in such an approach are addressed, particularly with regard to quantifying the effects of nonresponse on the…

Reasons dropouts offer for withdrawal from college and differences between respondents and nonrespondents to a followup questionnaire were studied. During the spring 1980 semester, freshmen and sophomores completed a questionnaire describing their background and college experiences. A total of 156 dropouts (those who did not complete courses…

A study was conducted at Los Angeles Pierce College (LAPC) to test the relative reliability of small-sample telephone interviewing and large-sample mailings with postcard and telephone reminders for student follow-up. The study involved conducting a telephone survey of 245 former students who had enrolled at LAPC in four program areas, and a mail…

This article assimilates and critically reviews 10 reports between 1960 and 1980 in which hypnosis was used with non-retarded children, aged 6 to 17, who had learning problems. Studies are reviewed in terms of the major deficit focused on by the researchers, i.e., reading deficits, self-concept and academic achievement, academic behavior problems,…

Sample undercoverage issues in the National Education Longitudinal Study of 1988 (NELS:88) are addressed. The main focus is the exclusion of certain categories of student in the base year, 1988, and in in-school follow-up rounds. A subsidiary focus is the question of how adequately transfer students were captured within the sampling procedures of…

As in any very large survey, the sample that provided data for the National Longitudinal Study of the High School Class of 1972 (NLS) differed from the random sample of the study design because of nonresponse from 226 of the 1,200 schools in the primary sample, and a small amount of other missing data. Part A of this report, briefly describes the…

A student follow-up system was designed and implemented at Gadsden State Junior College (GSJC) in Alabama which revealed several administrative problems in integrating student follow-up into the institutional planning process. Development of the system involved tailoring existing pre-packaged follow-up methodologies to meet GSJC's individual needs…