Discusses how to define a welfare spell (period on welfare) and how well surveys measure welfare spells. A look at survey and administrative data from two studies shows that a substantial amount of administrative churning occurs in administrative data. A single definition of a welfare spell does not appear applicable to all respondents. (SLD)

Collected substance use survey data from 69 of 105 targeted school districts in 12 states. Results indicate that the availability and quality of extant data currently limit their usefulness. Recommendations are made to assisting schools to improve the value of their substance use surveys. (SLD)

Compared face-to-face interviews with self-administered questionnaires as methods of data collection in a study of smoking attitudes and behavior conducted with 601 young Latina and African American women. Results show neither mode to provide superior results and indicate that cost effectiveness and convenience may be greater for the…

Risks of life on the street caused by inclement weather, harassment, and assault threaten the unsheltered homeless population. We address some challenges of enumerating the street homeless population by testing a novel capture-recapture (CR) estimation approach that models individuals' intermittent daytime visibility. We tested walking and…

Reasons for not returning a questionnaire were studied among Lutheran church members sent a postcard to indicate no intention of replying. The analysis is based on 431 returned postcards. For most nonresponders, the interest value of the questionnaire topic was not high enough. Many who returned the negative reply card would be resistant…

Methods for recording information derived from focus groups are described as follows: (1) transcribe the entire discussion from a tape; (2) expand reporter's notes by using a tape; and (3) work from reporter's notes only. Three approaches are also suggested for synthesizing the discussion into an accurate text. (SLD)

The Children's Health Awareness Project is presented as a case study in using focus groups for gathering sensitive information from children. General focus group techniques and advantages and limitations of the method are described. Recommendations are offered for use of the technique with children when sensitive topics are addressed. (SLD)

Reliability and validity of self-report data provided by 178 mentally ill homeless persons were generally favorable. Self-reports of service use also generally agreed with treatment staff estimates, providing further validity evidence. Researchers and administrators can be relatively confident in using such data. (SLD)

Evaluated the accuracy of three methods used to obtain policy data: (1) government surveys; (2) secondary sources; and (3) historical legal research. Findings from a study of changes in state legislation show legal research to be most accurate for established laws, but multistage data best for recent laws. (SLD)

Two methods for dividing an interrupted time-series study between baseline and experimental phases when study resources are limited are compared. In fixed designs, the baseline duration is predetermined. In flexible designs the baseline duration is contingent on remaining resources and the match of results to prior expectations of the evaluator.…

Compared self-administered diaries and telephone interviews as ways of collecting data from 100 adults and adolescents in a survey of drinking, drug use, and sexual activity. Outlines advantages of each method and the higher personnel costs of telephone interviews. (SLD)

A methodology for developing clinical/research assessment tools, training interviewers, and continuously assessing interrater reliability is discussed. Data from a multisite national evaluation of long-term health care programs (i.e., the Social/Health Maintenance Organization (HMO) for elderly clients) are used. Focus is on providing research…

Not all data for a program evaluation may be equally valuable, and costs of collection may vary when using several methods to obtain data from several sources. An approach to maximize information yield for a fixed, limited budget using a mathematical technique known as linear programming is described and generalized. (Author/CM)

The linked judgments approach is offered as a potential solution to problems of statistical conclusion validity when judges' ratings are employed in pretest-posttest designs. (Author/GK)

Using data from the evaluation of the Fast Track intervention, this article illustrates three methods for handling attrition. Multiple imputation and ignorable maximum likelihood estimation produce estimates that are similar to those based on listwise-deleted data. A panel selection model that allows for selective dropout reveals that highly…