Computer-based scaffolding (CBS) has been regarded as an effective way to help individual students complete and gain skill at completing complex tasks beyond their current ability level. Previous meta-analyses also have demonstrated that CBS for collaborative learning leads to positive cognitive outcomes in problem-centered instruction for STEM…

This meta-analysis extends previous work on extensive Tier 3 type reading interventions (Wanzek & Vaughn, 2007; Wanzek et al., 2013) to Tier 2 type interventions by examining a non-overlapping set of studies addressing the effects of less extensive reading interventions for students with or at risk for reading difficulties in Grades K-3. We…

This meta-analysis extends previous work on extensive Tier 3 type reading interventions (Wanzek and Vaughn "School Psychology Review," "36", 541-561, 2007; Wanzek et al. "Review of Educational Research," "83", 163-195, 2013) to Tier 2 type interventions by examining a non-overlapping set of studies…

Used meta-analysis to examine duration of group experience and structure provided by leader in counseling groups from 26 studies. Group composition appeared to have greatest effect in unstructured group which was relatively long in duration. Leaders using short-term, structured groups may be less concerned with composition, as its potential effect…

Summarizes research comparing boundaries around larger and smaller groups. Finds that the perception of group boundary permatbility varies with group size. Reports a greater perceived distinction between the group and the individual passerby as group size increases. Describes the effects of varying group member proximity. Discusses implications…