A note on the use of mood's likelihood ratio test for item analyses involving 2 × 2 tables with small samples

Mood's likelihood ratio test is generally considered an unreliablex ² approximation in 2 × 2 contingency tables containing expected cell frequencies less than five. Probability values were computed for 60 such tables as part of an item analysis for two 30-item alternate forms of a measure. The rank orders of the items, from best to worst differentiators, as determined separately by Mood's test and by Fisher's exact test correlated .97 for one form and .96 for the other.     

Facilitating normative judgments of conditional probability: frequency or nested sets?

Recent probability judgment research contrasts two opposing views. Some theorists have emphasized the role of frequency representations in facilitating probabilistic correctness; opponents have noted that visualizing the probabilistic structure of the task sufficiently facilitates normative reasoning. In the current experiment, the following conditional probability task, an isomorph of the "Problem of Three Prisoners" was tested. "A factory manufactures artificial gemstones. Each gemstone has a 1/3 chance of being blurred, a 1/3 chance of being cracked, and a 1/3 chance of being clear. An inspection machine removes all cracked gemstones, and retains all clear gemstones. However, the machine removes 1/2 of the blurred gemstones. What is the chance that a gemstone is blurred after the inspection?" A 2 x 2 design was administered. The first variable was the use of frequency instruction. The second manipulation was the use of a roulette-wheel diagram that illustrated a "nested-sets" relationship between the prior and the posterior probabilities. Results from two experiments showed that frequency alone had modest effects, while the nested-sets instruction achieved a superior facilitation of normative reasoning. The third experiment compared the roulette-wheel diagram to tree diagrams that also showed the nested-sets relationship. The roulette-wheel diagram outperformed the tree diagrams in facilitation of probabilistic reasoning. Implications for understanding the nature of intuitive probability judgments are discussed.     

Some Modifications of Carnap’s Modal Logic

In this paper, Carnap??s modal logic C is reconstructed. It is shown that the Carnapian approach enables us to create some epistemic logics in a relatively straight-forward way. These epistemic modifications of C are axiomatized and one of them is compared with intuitionistic logic. At the end of the paper, some connections between this epistemic logic and Medvedev??s logic of finite problems and inquisitive semantics are shortly discussed.     

A test of the optimal classifier’s independence assumption in perceptual categorization

Observers completed perceptual categorization tasks that included separate base-rate/payoff manipulations, corresponding simultaneous base-rate/payoff manipulations, and conflicting simultaneous base-rate/payoff manipulations. Performance (1) was closer to optimal for 2:1 than for 3:1 baserate/ payoff ratios and when base rates as opposed to payoffs were manipulated, and (2) was more in line with the predictions from the flat-maxima hypothesis than from the independence assumption of the optimal classifier in corresponding and conflicting simultaneous base-rate/payoff conditions. A hybrid model that instantiated simultaneously the flat-maxima and the competition between reward and accuracy maximization (COBRA) hypotheses was applied to the data. The hybrid model was superior to a model that incorporated the independence assumption, suggesting that violations of the independence assumption are to be expected and are well captured by the flat-maxima hypothesis without requiring any additional assumptions. The parameters indicated that observers’ reward-maximizing decision criterion rapidly approaches the optimal value and that more weight is placed on accuracy maximization in separate and corresponding simultaneous base-rate/payoff conditions than in conflicting simultaneous base-rate/payoff conditions.     

Is the independence of golf scores for professional golfers a statistical artifact?

This study investigated whether the lack of day-to-day consistency in performance for professional golfers would occur if round ranks were employed instead of round scores. When players' round scores from the 2004 Clark study were converted to round ranks, the results were very similar to those found in that study. It was concluded that the range of abilities for professional golfers is so restricted that the fluctuation in players' scores or rankings will show little consistency from day to day.     

What makes us believe a conditional? The roles of covariation and causality

Two experiments were conducted to investigate the roles of covariation and of causality in people's readiness to believe a conditional. The experiments used a probabilistic truth-table task (Oberauer & Wilhelm, 2003 Oberauer, K. and Wilhelm, O. 2003. The meaning(s) of conditionals: Conditional probabilities, mental models, and personal utilities. Journal of Experimental Psychology: Learning, Memory & Cognition, 29: 680–693. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) in which people estimated the probability of a conditional given information about the frequency distribution of truth-table cases. For one group of people, belief in the conditional was determined by the conditional probability of the consequent, given the antecedent, whereas for another group it depended on the probability of the conjunction of antecedent and consequent. There was little evidence that covariation, expressed as the probabilistic contrast or as the pCI rule (White, 2003 White, P. A. 2003. Making causal judgements from the proportion of confirming instances: The pCI rule. Journal of Experimental Psychology: Learning, Memory, and Cognition, 29: 710–727.  [Google Scholar]), influences belief in the conditional. The explicit presence of a causal link between antecedent and consequent in a context story had a weak positive effect on belief in a conditional when the frequency distribution of relevant cases was held constant.     

Kupalov’s concept of shortened conditional reflexes: Psychophysiological and psychopharmacological implications

In the regulation of cortical excitability tonus, Kupalov described a particular acquired, learned mechanism, the shortened conditional Reflex (SCR). SCR is an essential mechanism by which an adequate cortical tonus is established by environmental cues as an anticipatory set-up preparing the individual qualitatively and quantitatively for expected forthcoming events. An original physiological example is given, the conditional “transfer” of motor behavior at cortical electrical stimulation. Three psychopharmacological implications are presented, namely environmental-dependent, stress-related events, environmental-dependent drug conditioning, and drug-tolerance experiments. Future eventual psychophysiological and psychopharmacological lines of research related to the shortened conditional reflex concept are discussed.     

An empirical comparison of theZ-variance and Box-Scheffé tests for homogeneity of variance

This brief report provides a comparison of theZ-variance and Box-Scheffé tests for homogeneity of variance. Both procedures are relatively simple to perform and both may be readily utilized in complex, multifactor designs. TheZ-variance test is not robust against non-normality; the Box-Scheffé test is robust against non-normality but is not nearly as powerful as theZ-variance test.     

Race × class stereotypes of women

Forty-four undergraduates assigned traditional stereotyping adjectives to middle-class black, middle-class white, lower-class black, and lower-class white female stimulus persons. A multivariate analysis of variance revealed that these Race × Class stereotypes of women differed significantly by race and by social class, but there was no Race × Class interaction. The stereotype of white women was rated significantly higher than that of black women on dependent, passive, and emotional. The stereotype of lower-class women was rated significantly higher than that of middle-class women on confused, dirty, hostile, inconsiderate, and irresponsible. Although the stereotypes of women differed significantly by race and social class, all were stereotypically feminine. In addition, the stereotypes of white women, and of middle-class women were most similar to traditional stereotypes of women. Thus, it was concluded that both race and social class are implicit variables in sex-role stereotypes.     

Some Considerations of “Hate” and a Reconsideration of the Death Instinct

Egon Schiele (1890–1918) was a leading figure of second-generation Viennese modernism. Appreciated in his time as an extraordinary draughtsman, he was also notorious for the blatant eroticism of his young female nudes and the ruthless honesty of his tortured self-portraits. A historically informed psychoanalytic approach reveals both the intrapsychic and psychohistorical significance of his work.

Schiele's explorations in portraiture were partly the product of internal conflicts on many levels. But they were also refracted through a turn-of-the-century crisis in European masculine identity. The crisis was born of social and political developments that worked to undermine middle-class males' sense of power and self-esteem, among them the woman's movement and a new cultural awareness of the psychological power of mothers and of female sexuality. These factors were especially powerful in the psychology of artists, who often felt both marginal and effeminate in a culture that valued the manly virtues of the warrior and the entrepreneur. Their effects are reflected in the fragmented self-images, overpowering mothers, and seductively self-certain girls and women of Schiele's paintings.     

On the determinants of other-regarding behavior: Field tests of the moral foundations questionnaire☆,☆☆,,

This paper examines moral foundations as a predictor of other-regarding behavior outside a laboratory setting. We link responses to the Moral Foundations Questionnaire (MFQ) with direct measures of other-regarding behavior in two studies. In both studies, moral foundations (as measured by the MFQ) predict other-regarding behavior. Study 1 finds the return rate of a follow-up survey is positively predicted by individualizing foundations and negatively predicted by binding foundations, particularly authority. Study 2 finds the relationships between moral foundations and donations to pre-selected charities are highly sensitive to the inclusion of a veterans charity in the choice set. Individualizing foundations positively predict donations in non-veterans conditions, while loyalty (positively) and authority (negatively) predict donations in veterans conditions.     

Can independence be observed in a dependent system? The case of tip-of-the-tongue states.

Caramazza and Miozzo (1997) found that speakers experiencing tip-of-the-tongue states are able to report phonological information independently from syntactic information. They used this finding to reject sequential models of production, in which syntactic units (lemmas) are retrieved before form units (lexemes). To see whether this conclusion is warranted, we performed two simulation experiments based on sequential architectures. Both models we simulated produced statistically uncorrelated syntax and phonology despite sequentially retrieving lemmas and lexemes. Finally, we analyzed a corpus of Spanish errors, finding syntactic constraints on phonological word substitution errors that are not easily explained without sequentiality.     

Mediators of the associations between parents’ conditional regard and the quality of their adult-children’s peer-relationships

Motivation and Emotion - Parental conditional regard (PCR) involves parents providing or withdrawing affection to motivate children to do what the parents want. Numerous studies have demonstrated...     

Who thinks inside of me? Some aspects of Merab Mamardašvili`s theory of consciousness

In this article I look at the methodology of one the most unique figures in Russian philosophy—Merab Mamarda?vili—who was known for his focus on consciousness. According to him, the application of the subject–object dualism to the analysis of consciousness leads to a series of complications. Within the phenomenological framework of intentionality there is an interwining of perspective and object to which this perspective is directed. As soon as we try to apply to consciousness subject–object schemes, then we immediately come across paradoxes. It is impossible to determine consciousness by means of subject–object, not only because it is neither an object nor a subject, but also because consciousness inevitably turns out to be “prior” to such distinctions.