Dogs are exceptionally successful at interpreting human pointing gestures to locate food hidden in one of two containers. However, it has repeatedly been questioned whether dogs rely on the pointing gesture or their success is increased by subtle cues from their human handler. In two experiments we used a standard two-way object-choice task to focus on this potential Clever Hans effect. We inve...

The Yellow Ribbon Suicide Prevention Program has gained national and international recognition for its school- and community-based activities. After the introduction of Yellow Ribbon to a Denver-area high school, staff and adolescents were surveyed to determine if help-seeking behavior had increased. Using a pre-post intervention design, staff at an experimental school and comparison school wer...

OBJECTIVE to verify whether there are associations among occupational roles, independence to perform Activities of Daily Living, purchasing power, and assistive technology for individuals with physical disabilities. METHOD 91 individuals with physical disabilities participated in the study. The instruments used were: Role Checklist, Brazilian Economic Classification Criterion, Barthel Index, ...

Offering help functions is a standard feature of computer-based interactive learning environments (ILE). Nevertheless, the effectiveness of learners’ use of help facilities has been subject to extensive debate. In this paper the issues of effectiveness of help and the impact of learner-related factors are addressed in an ILE for plant identification. We report first explorative data from a regu...