This study evaluated the effectiveness of a National Institute of Corrections' cognitive-behavioral program for adult offenders, entitled "Thinking for a Change." One hundred male and 42 female probationers were studied. Probationers assigned to the "Thinking for a Change" program were matched with a comparison group not assigned to the program…

The purpose of this study was to empirically examine the influence of a cup stacking instructional unit on the hand-eye coordination of children. Participants (N = 104) consisted of three grade level groups (first/second, third and fourth). Within each grade level participants were randomly assigned to either an experimental or a control group.…

The literature on homeless adults with severe mental illness is generally silent on a critical issue surrounding service delivery--the contrast between housing first and treatment first program philosophies. This study draws on data from a longitudinal experiment contrasting a housing first program (which offers immediate permanent housing without…

The objective of this study was to identify causal relationships between the development of phonological abilities and progress in writing in preschool children. The participants were 44 children, with an average age of 5 years and 6 months, and whose writing was syllabic with phonetization. The children were divided into three groups. They were…

The objective of this research is to investigate the effects of simulations based on conceptual change conditions (CCS) and traditional confirmatory simulations (TCS) on pre-service elementary school teachers' understanding of direct current electric circuits. The data was collected from a sample consisting of 89 students; 48 students in the…

During the 2004-05 school year, the National Research Center for Career and Technical Education conducted a study entitled "Building Academic Skills in Context: Testing the Value of Enhanced Math Learning in Career and Technical Education," commonly referred to as the Math-in-CTE study. This was a random-assignment experiment that tested the…

The purpose of the current study is to explore the effects of community service work and community involvement on perceptions of self-entitlement--expectations of others to do things for oneself--among undergraduate students. Over the course of a 16-week semester, 26 randomly selected subjects (20 community college psychology students and six…

The purpose of this study was to investigate whether introducing schematising to children in early childhood (ages five to six) promotes better learning outcomes in later mathematics (age seven). This was done using a longitudinal, quantitative study with a quasi-experimental design. With the help of teachers and a teacher-trainer, pupils in the…

This review focuses on the effects of multiple contacts with respondents on studies of response rates to mail surveys. After screening articles on research criteria, such as the presence of original research and sufficient reporting detail, 28 studies remained of the original 208 identified. The difference in response rate between treatment and…

The effects of conditions of informed consent and disclosure on the performance of 84 students doing a statistics laboratory assignment for an introductory graduate course in statistics at a state university in the southeast were studied. Four separate classes taught by three instructors were included. Subjects ranged in age from 22 to 47 years,…

Problems associated with the analysis of data collected using the Solomon Four Group Design are discussed. The design includes an experimental group and a control group that have been pretested and posttested, and an experimental and a control group that have been posttested only. A sample problem is approached in three different ways. First, the…

THE ACHIEVEMENT OF ALL BEGINNING AND ADVANCED SHORTHAND STUDENTS USING TRADITIONAL SHORTHAND TEACHING DURING 1964-65 WAS COMPARED WITH THAT OF ALL BEGINNING AND ADVANCED SHORTHAND STUDENTS USING THE FOUR-CHANNEL STENOGRAPHIC LABORATORIES AND A LOCALLY DEVELOPED 440-TAPE LIBRARY DURING 1965-66. IN BEGINNING SHORTHAND, 1,596 STUDENTS STARTED AND…

AN EXPERIMENTAL GROUP OF 20 AND A CONTROL GROUP OF 8 UNDERACHIEVING 10TH GRADE BOYS WERE RANDOMLY SELECTED FROM APPLICANTS FROM THREE HIGH SCHOOLS IN MICHIGAN TO PARTICIPATE IN V.I.S.I.T., A PROJECT AT EASTERN MICHIGAN UNIVERSITY DESIGNED TO BROADEN KNOWLEDGE ABOUT VOCATIONS. EACH DAY FOR 2 WEEKS, THE EXPERIMENTAL GROUP VISITED NEARBY PLANTS AND…

THIS EXPERIMENT WAS DESIGNED TO INVESTIGATE (1) THE AMOUNTS OF INFORMATION COMMUNICATED BY THE KNOWLEDGE OF A PRINCIPLE AS OPPOSED TO THE KNOWLEDGE OF CUES AND (2) THE EFFECTIVENESS OF THE KNOWLEDGE OF A PRINCIPLE AS OPPOSED TO THE KNOWLEDGE OF CUES AT DIFFERENT STAGES OF LEARNING. THE FOUR GROUPS MAKING UP THE EXPERIMENTAL DESIGN WERE A CUE GROUP…

Linear classification functions (LCFs) arise in a predictive discriminant analysis for the purpose of classifying experimental units into criterion groups. The relative contribution of the response variables to classification accuracy may be based on LCF-variable correlations for each group. It is proved that, if the raw response measures are…