We conducted a Monte-Carlo study to investigate the influence of single-case research design chracteristics (phase length, initial DV level, intervention effect, trend) on the test power of piecewise Poisson-regression models. PLM have a high potential of adequately identifying intervention effects in single-case research designs. However, few measurement times, especially in phase A, and low initial DV levels make it impossible to detect even large intervention effects. Research designs with a high number of measurement times show robust power.
Audio stories offer a unique blend of narrative entertainment with language learning opportunities as a user’s enjoyment is dependent on their processing of the linguistic content. A total of 138 third- and fourth-graders from low socioeconomic …
We had 186 pre-service teachers visually analyze single-case graphs, representing an intervention effect, a baseline trend, both, or no change at all. The presence of a baseline trend increased type I errors from 5% to 25%. Inter- and intra-rater reliabilities were low, particularly for graphs including a baseline trend.
Interventions to support children with mathematical learning difficulties typically address deficits in domain-specific knowledge. However, not all students benefit from these instructional programs. In this case, some authors suggest an even more …
In this study we found that attitudes towards inclusive education are significantly influenced by social context (i.e. the perceived attitude of the organization conducting the survey). Social desirability, a neglected issue in this research area, challenges the validity of numerous studies, as a positive bias emerges when participants are surveyed by a university. The study suggests steps to reduce validity problems caused by social desirability in researching attitudes towards inclusion.