The evaluation of individual cognitive change has relied heavily upon the raw change score, defined simply as the difference between follow-up and baseline scores. However, raw changes scores are susceptible to the confounding effects of both regression-to-the-mean and practice effect. The clinical relevance of raw change scores for the older adult is also obscured by normal, age-related cognit...

BACKGROUND Computerized cognitive testing has the potential to be an effective way to assess and monitor cognition in large neuroepidemiological studies. CogState is a game-like computerized test with demonstrated validity and reliability that has shown sensitivity to decline in older individuals over time. This study aimed to evaluate the serial usability of the test specifically within an old...

We investigated the relationship between deep acting, automatic regulation and customer tips with 2 different study designs. The first study was a daily diary study using a sample of Dutch waiters and taxi-drivers and assessed the link of employees' daily self-reported levels of deep acting and automatic regulation with the amount of tips provided by customers (N = 166 measurement occasions nes...

BACKGROUND The effects of biological and physical factors on cognitive aging are widely studied. Less is known about the role of psychosocial factors such as stress and social relationships for cognitive functioning. METHODS Speakers in Session IV of the Summit focused on possible mechanisms linking social interactions and stressful experiences to cognitive changes with aging. RESULTS Eleva...

Conflict of interest: All authors are employees and equity holders in CogState Ltd, the company that develops and markets the CogSport computerised cognitive testing software.

The clinical diagnosis of frontotemporal dementia (FTD) can be challenging even to experienced clinicians. In the absence of a definitive clinical test, this diagnosis relies on behavioral criteria. Difficulty applying these criteria arise for four main reasons. First, FTD patients present with social and personality changes that defy the neuropsychological model of dementia. Second, FTD is not...

Formal assessment of cognitive decline with cognitive tests can be difficult, requiring either two measurement points or a comparison of 'hold' with 'don't hold' tests. Informant-based assessment provides an alternative approach because informants can adopt a longitudinal perspective and directly rate cognitive change. A study was carried out to assess the validity of informant ratings collecte...

We are interested in evaluating interactive retrieval systems from the user's perspective. In this paper, we introduce several user studies evaluating the cognitive change in users' knowledge by using concept maps. We also propose a platform for user studies, including analysis tools, task descriptions, evaluation tools, and data sets.