However, because the extant research has not systematically accounted for the separate effects of language of instruction versus type of intervention, very little can be concluded about how these factors contribute to the positive main effects of these interventions.
Two other BCTs were coded from over half of interventions: "provide instruction" and "prompt specific goal setting".
Using socio-historical constructivist theory to guide instruction interventions, instruction frequency and questioning were intentionally manipulated during one-half of each course.
Prior successes of reasoning instruction interventions were all within the realm of visual diagnosis (Ark et al. 2006, 2007; Hatala et al. 1999; Regehr et al. 1994), where the cognitive load is constrained to a visual space.
We used the instructions in The Cochrane Handbook for Systematic Reviews of Interventions [20] in our evaluation of the methodology and hence bias risk of the included trials.
The project was expensive: With a starting teacher-child ratio of about 1-to-3 in the nursery and 1-to-6 in the final year of instruction, the intervention ultimately cost about $70,000 a head over 5 years.
MR. PASTERNACK: We know that too many children are referred for special education services because of a lack of effective instruction and early interventions in general education classrooms.
Physical therapists in participating clinics ("intervention therapists") will complete standardized training in the intervention procedures, including instruction of the education session and the exercise program.
The types of interventions reviewed included comprehensive OT interventions (outside the home), training of skills combined with instruction on assistive devices, instruction only regarding assistive devices, and counseling of primary care providers.
DS is involved in the development of the experimental intervention, the design of the study and the instruction of the health care professionals regarding this intervention.
