This study investigated differences in achievement for control groups learning college algebra using traditional classroom instruction methods compared to experimental groups using computer algebra tutorials for three precalculus topics. Two instructors each taught one control group and one experimental group. No significant differences were…

The regression-discontinuity design involving a treatment interaction effect (TIE), pretest-posttest functional form specification, and choice of point-of-estimation of the TIE are examined. Formulas for controlling the magnitude of TIE in simulations can be used for simulating the randomized experimental case where estimation is not at the…

Describes a computer-based instructional system called Stat Lady and reports the results of an evaluation study of undergraduates that tested the efficacy of learning probability from this program compared to a traditional lecture and a no-treatment control group. Aptitude treatment interaction is also investigated. (Author/LRW)

Inagaki and Hatano (2002) have argued that young children initially understand biological phenomena in terms of vitalism, a mode of construal in which "life" or "life-force" is the central causal-explanatory concept. This study investigated the development of vitalistic reasoning in young children's concepts of life, the human body and death.…

The purpose of this research was to ascertain if there were any significant differences in the ability to read logos and to make the transition to reading logos in manuscript forms of kindergarten children who received direct instruction with environmental print, those who received indirect instruction, and those who received no instruction with…

The present study reports results of an experiment with two groups of sophomore students majoring in translation. The control group was taught British culture using in-class instruction only, and the experimental group was taught using a combination of online and in-class instruction. Experimental students used the online course from home as the…

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.…

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.…

The purpose of this study was to investigate the effects of various translation methods used in imported instructional video programs on Taiwan elementary school students' visual and verbal memory. Following pretesting, 128 fourth grade students from an urban public elementary school in northern Taiwan participated. The students in 4 experimental…

Relative effects on adult learners who received experimenter-provided elaborations or who generated personal elaborations, using strategies taught by means of detached versus embedded training, were examined in 80 employees in a professional-development course at a large corporation. Subjects were assigned to a control group, a group receiving…

The Cooperative Extension Service has been a key partner in the design, implementation and evaluation of leadership development programs. To evaluate the effectiveness of their training and the effects of response shift bias on outcomes using a self-report measure, one hundred forty-seven County Extension Agents participated in this leadership…

Using the Component Display Theory as an analyzing tool, this study compared the effects of expository and discovery methods of instruction on two learning outcomes, application and transfer. One hundred ninth grade students in each of four earth science classes were randomly assigned to five groups--four experimental groups designed to test four…

This study was designed to test the hypothesis that students who are given common errors matched with correct performance as part of their instruction in carrying out a procedure will perform better than students who are given only the correct performance. The task was the procedure for correcting color imbalances in color slides, and 56 college…

Violence is increasingly present in Quebec schools. Our position is that we should invest in "primary" prevention of violence by helping preschool children develop cognitive competencies. One of the aspects of cognitive development explored in this text regards children's Social Representations (SR) of violence. Indeed, a number of…