The Direct Assessment of Functional Abilities (DAFA) was designed as a direct measure of instrumental activities of daily living (IADLs) that could be compared with an indirect assessment of IADLs by the Pfeffer Functional Activities Questionnaire (PFAQ). The DAFA (28 demented and 15 control subjects) and PFAQ (subjects and informants) were administered twice, together with a brief cognitive ba...

One experiment with rats used Pavlovian-to-instrumental transfer (PIT) tests to explore potential competitive interactions between Pavlovian and instrumental processes during instrumental learning. Two instrumental response-outcome relations (e.g., left lever - grain pellets, right lever - sucrose pellets) were first trained in distinct contexts for one group of rats (Group Differential) or in ...

We study envy-free and truthful mechanisms for domains with additive valuations, like the ones that arise in scheduling on unrelated machines. We investigate the allocation functions that are both weakly monotone (truthful) and locally efficient (envy-free), in the case of only two tasks, but many players. We show that the only allocation functions that satisfy both conditions are affine minimi...

There is considerable disagreement about the epistemic value of novel predictive success, i.e. when a scientist predicts an unexpected phenomenon, experiments are conducted, and the prediction proves to be accurate. We survey the field on this question, noting both fully articulated views such as weak and strong predictivism, and more nascent views, such as pluralist reasons for the instrumenta...

OBJECTIVES To (1) create a single metric of disability using Rasch modelling to be used for comparing disability severity levels across groups and countries, (2) test whether the interval-level measures were invariant across countries, sociodemographic and health variables and (3) examine the gains in precision using interval-level measures relative to ordinal scores when discriminating between...

Modern development economics emerged with the realization that poverty changes the set of options available to individuals. Poverty thus affects behavior, even if the decision maker is “neo-classical”: unboundedly rational, forward-looking, and internally consistent. The “homo economicus” at the core of neo-classical economics (“calculating, unemotional maximizer”, (Mullainathan and Thaler, 200...

Culture is the ongoing oroduct of the evolved osvches of individual humans living in . . . e groups. Progress in our understanding of culture as a phenomenon depends an progress in uncovering the nature of the evolved mechanisms that comprise the human psyche, including but not limited to those responsible for learning. Actual attempts to specify information processing mechanisms that could, in...

We propose a generalization of expected utility that we call generalized EU (GEU), where a decision maker’s beliefs are represented by plausibility measures and the decision maker’s tastes are represented by general (i.e., not necessarily real-valued) utility functions. We show that every agent, “rational” or not, can be modeled as a GEU maximizer. We then show that we can customize GEU by sele...

PURPOSE OF THE STUDY To examine the longitudinal associations between 3 dimensions of religious involvement-religious attendance, use of religious media, and private religious activities-and 3 domains of functional status-limitations in basic activities of daily living (ADL), instrumental activities of daily living (IADL), and mobility in older adults. DESIGN AND METHODS Using the data from a...

OBJECTIVES Assessment of the predictive ability of the Mini-Mental Status Exam (MMSE) domains (orientation to time, orientation to place, registration, attention and calculation, recall, language, and visual construction) for falls in Mexican American elders tested the hypothesis that low MMSE domain scores are related to an increased number of falls. DESIGN Data were obtained from the 1998-9...