Doreen Struve

Video Modeling for Training Older Adults to Use New Technologies

The increasing permeation of technology in our society leads to the challenge that everybody needs to interact with technology systems. Older adults often meet difficulties while trying to interact with complex, demanding systems in their daily life. One approach to enable older adults to use new technologies in a safe and efficient way is the provision of training programs. In this article we report about a promising training strategy using video modeling in conjunction with other instructional methods to enhance learning. Cognitive as well as socio-motivational aspects will be addressed. We assessed if guided error training in video modeling will improve learning outcomes for a Ticket Vending Machine (TVM). To investigate if the training method might be beneficial for younger adults as well, we compared 40 younger and 40 older adult learners in a guided error training course with error-free training. Younger and older participants made fewer mistakes in guided error training, but no differences occurred in task completion times. Moreover, self-efficacy increased with training for both age groups, but no significant differences were found for the training condition. Analysis of knowledge gains showed a significant benefit of guided error training in structural knowledge. Overall, the results showed that guided error training may enhance learning for younger and older adults who are learning to use technology.

Instructional Videos for Supporting Older Adults Who Use Interactive Systems

The study reported in this paper investigated the usefulness of different instructions for guiding inexperienced older adults through interactive systems. It was designed to compare different media in relation to their social as well as their motivational impact on the elderly during the learning process. Precisely, the video was compared with textual help and the impact of model age (young versus old) on knowledge acquisition was explored. As a research object, a simulated ticket-vending machine was used. Results show that video-supported knowledge acquisition is better than text, but in relation to model age, no significant differences were found.

Unterstützung von Kreativitätssitzungen an einem Tabletop-System

Tabletop-Systeme bieten ideale Voraussetzungen für die Arbeit von kleinen Gruppen an kreativen Problemstellungen. Im Rahmen dieses Beitrags soll unt ersucht werden, welche Kreativitätstechniken sich durch ein Tabletop-System unterstützen lassen und wie diese Techniken angepasst werden müssen, damit die Interaktionsmöglichkeiten optimal eingese tzt werden können. Hierzu wird analysiert, welche Interaktionstechniken zur Unterstützung von kreativ en Prozessen an einem solchen Tisch vorhanden sein sollten. Aufbauend auf der Analyse wurde ein K o zept zur Computerunterstützung eines kreativen Arbeitsablaufs an einem Tabletop-System entwickelt und in Form eines Prototyps „Creative-GroupTable“ umgesetzt. Dieser Prototyp wurde mit zwölf P ersonen erprobt. Die Ergebnisse der Evaluation werden ebenfalls vorgestellt.