School-based asthma interventions delivered by nonschool staff have been successful but are limited in their reach because of the cost and effort of bringing in outside educators and their inability to establish improved communication about asthma between schools, families, and primary care providers (PCPs). To address these problems, Columbia…

The present study evaluates the relative effectiveness of two types of input-based instruction, structured input instruction (a structured input task only) and structured input instruction with feedback (the structured input task + reactive explicit feedback) for teaching English polite requestive forms, involving 45 Japanese learners of English.…

This study reports a small-scale experiment that was set up to estimate the extent to which (i) the use of formulaic sequences (standardized phrases such as collocations and idiomatic expressions) can help learners come across as proficient L2 speakers and (ii) an instructional method that emphasizes "noticing" of L2 formulaic sequences can help…

Sixty-four individuals with social phobia (social anxiety disorder) were assigned to a multimodal cognitive-behavioral treatment package or to a waiting list control group. Treatment consisted of a 9-week, Internet-delivered, self-help program that was combined with 2 group exposure sessions in real life and minimal therapist contact via e-mail.…

This report summarizes the National Job Training Partnership Act (JTPA) Study, which examined the impact of Title IIA of JTPA on participants' employment, earnings, and welfare receipt. Between 1987 and 1989, more than 20,000 adults and out-of-school youths who applied for JTPA services in 16 areas across the country were randomly assigned to a…

Empowerment theory suggests that changes in beliefs and attitudes contribute to the participation of individuals in social change. It assumes that in order for individuals to work for the collective good, they must develop a sense of critical consciousness. This study uses experimental methods to test the application of this theory to the Latino…

This study attempts to determine whether there exists a negative interconnection between the creative and testable nature-of-science (NOS) conceptions in college students' conceptual ecology by investigating, through a pair of IHV-assisted teaching experiments, the effect of raising the status of each NOS conception in students' conceptual ecology…

This paper reports a study that investigated the development of second language (L2) communication strategies (code-switching, all-purpose words, word coinage, approximation, and circumlocution) over time. In the study, 8 adult learners in a full-time English as a second language program provided oral narrations of an eight-frame picture story at…

In evaluation research studies, it often occurs that several program participants (experimentals) drop out of the program prior to completion. Since noncompleters generally differ substantially from completers in many respects, a control group which originally was representative of the participant group will most likely not be representative of…

There exists the practical possibility of randomly selected control groups for outcome assessments in mental health programs. Ethical considerations for randomization include distinguishing between innovation and "fooling around," and discriminatory implications of a first-come first-served selection procedure. Practical considerations include…

A rationale is presented for the "control items" technique, the technique of using control (nonexperimental) test items to provide a baseline for estimating the effects indicated by scores on the experimental test items. For evaluating the effects of a curriculum, a test can be made of two types of items--ones that test explicit program objectives…

CONTRARY TO THE OPINION OF MANY PEOPLE, PROJECT HEADSTART (HS) IS NOT A STABLE AND UNIFORM PROGRAM WHICH DEALS WITH AN EASILY DEFINABLE POPULATION. THERE ARE, THEREFORE, SEVERAL PROBLEMS WHICH EXIST IN CONNECTION WITH EVALUATIVE RESEARCH CONCERNED WITH HS. IN ORDER TO PROVIDE GUIDANCE IN PROGRAM PLANNING, THIS RESEARCH SEEKS TO DESCRIBE POTENTIAL…

THE EARLY TRAINING PROJECT IS A FIELD RESEARCH STUDY WHICH IS CONCERNED WITH THE PROBLEM OF THE PROGRESSIVE RETARDATION OF THE CULTURALLY DEPRIVED IN THE PUBLIC SCHOOLS. THE CHILDREN INVOLVED IN THE STUDY WERE ALL NEGRO. FROM A GROUP OF 61 CULTURALLY DEPRIVED NEGRO PRESCHOOL CHILDREN, 3 GROUPS WERE CONSTITUTED BY RANDOMIZATION. THE FIRST OF THESE…

THE PURPOSE OF THIS STUDY WAS TO DETERMINE THE RELATIVE EFFECTIVENESS OF INFORMATIONAL FEEDBACK FROM SUPERVISORS, STUDENTS, AND STUDENTS AND SUPERVISORS COMBINED AS A MEANS OF IMPROVING THE TEACHER IMAGE OF BEGINNING AND EXPERIENCED TEACHERS. THE 286 VOCATIONAL TEACHERS INCLUDED IN THE STUDY WERE CATEGORIZED INTO GROUPS BASED ON YEARS OF TEACHING…

A study was conducted to determine if the observed changes in Head Start children were related to the practice effects inherent in a test-retest situation. The "control" group consisted of 64 children who had been eligible for a Head Start program. They roughly matched a group of Head Start (HS) children in IQ scores, age, and…