Try it, you'll like it: the influence of expectation, consumption, and revelation on preferences for beer

Patrons of a pub evaluated regular beer and "MIT brew" (regular beer plus a few drops of balsamic vinegar) in one of three conditions. One group tasted the samples blind (the secret ingredient was never disclosed). A second group was informed of the contents before tasting. A third group learned of the secret ingredient immediately after tasting, but prior to indicating their preference. Not surprisingly, preference for the MIT brew was higher in the blind condition than in either of the two disclosure conditions. However, the timing of the information mattered substantially. Disclosure of the secret ingredient significantly reduced preference only when the disclosure preceded tasting, suggesting that disclosure affected preferences by influencing the experience itself, rather than by acting as an independent negative input or by modifying retrospective interpretation of the experience.     

First graders' literacy and self-regulation gains: The effect of individualizing student instruction

We examined the effect of individualizing student instruction (ISI; N = 445 students, 46 classrooms) on first graders' self-regulation gains compared to a business-as-usual control group. Self-regulation, conceptualized as a constellation of executive skills, was positively associated with academic development. We hypothesized that the ISI intervention's emphasis on teacher planning and organization, classroom management, and the opportunity for students to work independently and in small groups would promote students' self-regulation. We found no main effect of ISI on self-regulation gains. However, for students with weaker initial self-regulation, ISI was associated with greater self-regulation gains compared to peers in control classrooms. The ISI effect on self-regulation was greater when the intervention was more fully implemented.     

Intentional Objects,Pretence, and the Quasi-Relational Nature of Mental Phenomena: A New Look at Brentano on Intentionality

Abstract

Brentano famously changed his mind about intentionality between the 1874 and 1911 editions of Psychology from an Empirical Standpoint (PES). The 1911 edition repudiates the 1874 view that to think about something is to stand in a relation to something that is within in the mind, and holds instead that intentionality is only like a relation (it is ‘quasi-relational’). Despite this, Brentano still insists that mental activity involves ‘the reference to something as an object’, much as he did in the 1874 edition of PES. The question is what Brentano might have meant by this, given that he rejects a relational account of intentionality. The present paper suggests an answer. It draws on recent work on pretence theory to provide a model of Brentano’s notion of the quasi-relational nature of mental phenomena, as well as of the notion of mental reference to an object, and argues that the model helps to explain why Brentano might have been able discern a clear continuity between the views of the 1874 and 1911 editions of PES, despite the differences.     

The Multitasking Preference Inventory: Toward an Improved Measure of Individual Differences in Polychronicity

This article describes the initial development of a new measure of individual polychronicity, a construct indicating a preference for multitasking as opposed to performing only one task at a time. Following a brief review of past definitional issues, a revised definition is offered and a new measure of polychronicity—the Multitasking Preference Inventory (MPI)—is created based on this definition. Three studies describe the creation, pilot testing, and psychometric refinement of an initial pool of items (Study 1); a convergent and discriminant validity analysis (Study 2); and initial findings with respect to the criterion-related validity of scores on the MPI (Study 3). Together, these findings provide preliminary evidence for the reliability of scores on the MPI and the validity of the MPI in predicting variables relevant to multitasking.     

Calibrating Situation Awareness and Confidence Within a Multinational Coalition Operation

In the present article the calibration of situation awareness and confidence within a multinational coalition was examined. The results revealed differential levels of situational awareness and calibration across the members of the coalition. These findings are discussed in terms of both linguistic and cultural differences within the coalition and the potential implications that poor calibration can have for decision-making and overall team performance.     

Coding strategies,perceptual grouping,and the “variability effect” in free recall

Three experiments examined the effects of constant vs. varied input of letter strings on recall, and then examined the effects of such training in the learning of new lists of letter strings. Letter strings were constructed from pairs of trigrams spatially grouped, and were presented either consistently or with different spatial groupings on successive presentations. In Experiments I and II, varied input produced substantially greater recall than constant input. When transferred to a new list of letter strings, containing either the same general structure or a new scrambled structure, recall of the second list was determined primarily by conditions of first-list input, and unaffected by second-list structure. Although the "variability effect" did not appear in the training phase of Experiment III, Varied input led subjects to regroup or integrate the letter sequences more frequently and produced similar transfer effects as in Experiments I and II.     

Conditioned taste aversions: Two-stimulus tests are more sensitive than one-stimulus tests

Weanling and mature rats were presented with saccharin or saline solutions for 1 h on alternate days. Following exposure to saccharin, rats were injected with 0, 21, or 37 mg/kg of cyclophosphamide. Injections had no significant effect on saccharin preference in one-stimulus tests, but had a highly significant effect in two-stimulus tests.     

Brightness of paired photic pulses with pulse duration and separation varied

The brightness of pairs of photic pulses, differing in pulse duration and pulse separation. was measured. The data were in general agreement with the neurophysiological model of Bishop and Clare. Pulse duration appeared to have little systematic influence on the shape of the curves. Time between onset of the first and second pulse appeared to be a prime factor determining the receptivity of the cortex to the second pulse. The two pulses were seen as single below about .03 sec separation. The second pulse was always judged brighter than the first.