Intrinsic Motivation and norms about payment1

Several previous studies have shown that rewarding individuals for preforming an interesting task may have an inhibitory effect on tast satisfaction and persistence. In this experiment, an extrinsic reward decreased task satisfaction and persistence when a norm for no payment existed, but the inhibitory effect was not found when a norm for payment was associated with the task. This result is discussed in terms of the “means-ends” theoretical perspective developed by Calder and Straw (1975b) as well as other dcompeting explanations.     

Quantification and semantic memory

Two models are considered for how people verify explicitly quantified sentences, such as All fathers are parents and Some fathers are parents. The models share the same second stage, but have different first-stage mechanisms. In the Predicate Intersection Model, suggested by Meyer (1970), the first stage involves a serial, self-terminating search among names of categories that intersect the predicate category. In the Feature Comparison Model (Smith, Shoben & Rips, 1974a), the first stage involves evaluating the overall relatedness between the subject and predicate categories by comparing their semantic features. To test the models, three reaction time experiments required subjects to verify statements quantified by Some or All. In the first experiment, the semantic relatedness of categories in false Some-statements was varied. Contrary to predictions of the Predicate Intersection Model, related categories increased reaction time for both true and false Some-statements. While the first experiment revealed that All-statements took longer to verify than comparable Some-statements, the second experiment demonstrated that the All-Some difference can be eliminated by presenting both statement types in the same block of trials, also disconfirming the Predicate Intersection Model. Finally, Experiment III examined the meaning of Some-statements in more detail by having subjects interpret the quantifier Some as “some but not all.” With this interpretation, Some-statements took longer to verify than All-statements. Overall the results support the Feature Comparison Model.     

Effects of situational cues on prism-induced aftereffects

A test was made of the hypothesis that external stimuli present during exposure to lateral displacement of the visual field can serve as situational cues whose presence or absence will influence the magnitude of aftereffects manifested subsequent to adaptation resulting from the exposure. The results indicated that the relative aftereffects were significantly greater when thenondisplacing goggles were worn during the periods in which aftereffect measurements were taken than was the case when they were removed during these test periods. The finding that manipulation of certain cues, i.e., the restriction of the visual field, weight, etc., of the goggles, associated with the adaptation period can in part determine the size of observed aftereffects provides evidence in support of the notion that aftereffects can be conditioned to precisely given constellations of stimuli In addition, the need for caution in conceptualizing aftereffects as simply the persistence of adaptive shifts once visual displacement has been terminated is suggested.     

The logical structure of linguistic commitment II: Systems of relevant commitment entailment

In The Logical Structure of Linguistic Commitment I (The Journal of Philosophical Logic 23 (1994), 369–400), we sketch a linguistic theory (inspired by Brandom's Making it Explicit) which includes an expressivist account of the implication connective, : the role of is to make explicit the inferential proprieties among possible commitments which proprieties determine, in part, the significances of sentences. This motivates reading (A B) as commitment to A is, in part, commitment to B. Our project is to study the logic of . LSLC I approximates (A B) as anyone committed to A is committed to B, ignoring issues of whether A is relevant to B. The present paper includes considerations of relevance, motivating systems of relevant commitment entailment related to the systems of commitment entailment of LSLC I. We also consider the relevance logics that result from a commitment reading of Fine's semantics for relevance logics, a reading that Fine suggests.     

A year’s memories: The calendar effect in autobiographical recall

When asked to recall autobiographical events from the past year, students tend to recall more incidents from the beginning and the end of school terms than from other periods. We investigated thiscalendar effect in Experiment 1 by comparing free recall at schools with different academic calendars. The event distributions tracked the individual calendars, helping to eliminate the possibility that the calendar effect is due to seasonal, nonschool factors, such as holidays. In Experiments 2–4, we checked explanations based on the ideas that events at term boundaries are more important or distinctive than others, that events are incorrectly dated too near the boundaries, and that boundaries serve as implicit cues for recall. These experiments revealed no evidence that importance or errors in dating could explain the effect. Manipulating cues, however, did change the size of the effect, implicating retrieval from very long-term memory as the effect’s source. We suggest that when people have to search episodic memory, they consider their own calendar rhythms (such as a student’s academic schedule) and let the temporal structure of their personal context guide their search.     

Investigating Relationships Among Distress Tolerance,PTSD Symptom Severity,and Alcohol Use

Journal of Psychopathology and Behavioral Assessment - Exposure to trauma (particularly interpersonal trauma), post-traumatic stress disorder (PTSD) symptoms, and low distress tolerance (DT; the...     

Predictors of Successful Completion of a Postincarceration Drug Treatment Program

Using secondary analysis, this study compared the characteristics of 1,763 parolees with substance abuse problems who successfully completed a post incarceration drug treatment program with those who did not. Those who completed the program were more likely to be women who had not used drugs 30 days before program admission, had fewer prior treatment experiences, remained in the program longer, and had secured employment and stable living arrangements by the time of discharge. Implications for treatment and program development are discussed.     

A Qualitative Study of the Interplay Between Privilege and Oppression

In this qualitative study, the authors explored how an individual's privileged social or cultural group statuses (e.g., being White, male, or heterosexual) may work in combination with an individual's oppressed group statuses (e.g., being African American, a woman, or lesbian/gay/bisexual) in shaping the individual's multicultural experiences. En este estudio cualitativo, los autores exploraron cóomo la posición social o cultural privilegiada de una persona (por ejemplo, ser Blanco, hombre, o heterosexual) puede trabajar en combinación con las posiciones oprimidas del grupo a quien pertenece el individuo (por ejemplo, ser Africano Americano, mujer, olesbiana/gay/bisexual) cuando se estan formando las experiencias multiculturales del individuo.     

Do children learn the integers by induction?

According to one theory about how children learn the meaning of the words for the positive integers, they first learn that "one," "two," and "three" stand for appropriately sized sets. They then conclude by inductive inference that the next numeral in the count sequence denotes the size of sets containing one more object than the size denoted by the preceding numeral. We have previously argued, however, that the conclusion of this Induction does not distinguish the standard meaning of the integers from nonstandard meanings in which, for example, "ten" could mean set sizes of 10, 20, 30,... elements. Margolis and Laurence [Margolis, E., & Laurence, S. (2008). How to learn the natural numbers: Inductive inference and the acquisition of number concepts. Cognition, 106, 924-939] believe that our argument depends on attributing to children "radically indeterminate" concepts. We show, first, that our conclusion is compatible with perfectly determinate meanings for "one" through "three." Second, although the inductive inference is indeed indeterminate - which is why it is consistent with nonstandard meanings - making it determinate presupposes the constraints that the inference is supposed to produce.     

Examining the Differential Item Functioning of the Rosenberg Self‐Esteem Scale Across Eight Countries1

We examined the differential item functioning (DIF) of Rosenberg's (1965 ) Self‐Esteem Scale (RSES) and compared scores from U.S. participants with those from 7 other countries: Canada, Germany, New Zealand, Kenya, South Africa, Singapore, and Taiwan. Results indicate that DIF was present in all comparisons. Moreover, controlling for latent self‐esteem, participants from individualistic countries had an easier time reporting high self‐esteem on self‐competence‐related items, whereas participants from communal countries had an easier time reporting high self‐esteem on self‐liking items ( Tafarodi & Milne, 2002 ). After adjusting for DIF, we found larger mean self‐esteem differences between the countries than observed scores initially indicated. The suitability of the RSES, and the importance of examining DIF, for cross‐cultural research are discussed.