The meaning(s) of conditionals: conditional probabilities,mental models,and personal utilities

Five experiments were conducted to test the hypothesis that people understand conditional statements ("if p then q") as indicating a high conditional probability P(q/p). Participants estimated the probability that a given conditional is true (Experiments 1A, 1B, and 3) or judged whether a conditional was true or false (Experiments 2 and 4) given information about the frequencies of the relevant truth table cases. Judgments were strongly influenced by the ratio of pq to p not q cases, supporting the conditional probability account In Experiments 1A, 1B, and 3, judgments were also affected by the frequency of pq cases, consistent with a version of mental model theory. Experiments 3 and 4 extended the results to thematic conditionals and showed that the pragmatic utility associated with believing a statement also affected the degree of belief in conditionals but not in logically equivalent quantified statements.     

Intergenerational transmission of maternal and paternal parenting beliefs: The moderating role of interaction quality

The finding that values, attitudes, and behaviour can be transmitted across generations is long standing. However, the role of fathers in this process has been underinvestigated. Furthermore, many researchers have not tested moderation effects. We extended the literature by investigating maternal and paternal transmission of harsh parenting beliefs to their children 23 years later. Furthermore, we examined the moderating role of interaction quality and included gender and socioeconomic status as control variables. Our data were collected in a unique longitudinal study of 128 families across 23 years. We found high positive associations between the harsh parenting beliefs of parents and their adult children, but only the mother–child transmissions were moderated by interaction quality. Mothers pass on low levels as well as high levels of harsh parenting beliefs to their children if their interaction quality is poor. These findings highlight the importance of investigating intergenerational transmission in both mother–child and father–child dyads.     

Acute effects of alcohol on cardiovascular reactivity to stress in college-age Type A (coronary prone) individuals

Healthy college-age males and females classified as Type A or Type B were randomly assigned to an alcohol (N=24) or a no-alcohol condition (N=24). Subjects were exposed to a verbal stress quiz while blood pressure, heart rate, peripheral vascular response (PVR), and self-reported anxiety indices were monitored. Results indicated that alcohol effected a reduction in resting levels of systolic blood pressure and a tonic reduction in the peripheral vascular response. Alcohol attenuated the systolic blood pressure, heart rate, and PVR to stress and efffected a decrease in anxiety following the Stressor. When analyzed relative to the participants' drinking experience, data indicated that the strongest stress-modulating effect of alcohol was evidenced by Type A subjects who have been identified as long-term drinkers. During recovery from stress Type A subjects identified as short-term drinkers maintained high levels of PVR. Types A and B subjects who did not ingest alcohol evidenced high PVR levels during stress. The findings are discussed in terms of the protective action of moderate chronic alcohol use on cardiovascular disease risk reduction in persons evidencing the coronary-prone behavior pattern.     

On a so‐Called Solution to a Paradox

The mooronic solution to the surprise quiz paradox says students know there will be a surprise quiz one day this week but they lose this knowledge on the penultimate day. This is because ‘there will be a surprise quiz one day this week’ then becomes an instance of Moore's paradox. This view has surprising consequences. Furthermore, even though the surprise quiz announcement becomes an instance of Moore's paradox on the penultimate day, this does not prevent the students from knowing the quiz is coming. I conclude that the first stage of the paradoxical argument succeeds and the mooronic solution fails.     

Mood-congruent false memories in the DRM paradigm

This study investigated the creation of mood-congruent false memories within the Deese–Roediger–McDermott (DRM) paradigm using recall and recognition of critical lures as performance measures. Participants (n=93) were randomly assigned to three mood-induction conditions (positive, negative and control) and were presented with positive, negative and neutral DRM word lists in audio form. We predicted that intrusion errors of the critical lures would be higher in the mood-congruent conditions. Results confirmed this prediction and extended previous DRM research by showing that already high false memory rates were increased when the valence of the lures matched the mood-induction condition. Furthermore, participants made more “remember” judgements for the emotion critical lures in their mood-congruent conditions. Discussion draws on spreading activation explanations of DRM findings, and considers how moods could increase activation of non-presented information.     

SHORT- AND LONG-TERM EFFECTS OF CONTINGENCY MANAGED INSTRUCTION ON LOW,MEDIUM, AND HIGH GPA STUDENTS1

Undergraduate students had been assigned to a contingency managed course or a conventional lecture course (Du Nann and Fernald, Journal of Applied Behavior Analysis, 1976, 9 , 373–374). Two years later, some 35% (N = 86) of the original classes responded to a letter offering them $2.00 to participate in a study of their educational experiences. These students completed a multiple-choice test on material from the course, and answered questions about activities and attitudes that might have been affected by the experience in Introductory Psychology. In the contingency management course 2 yr past, students were tested each week on a chapter of textbook material with 10-item multiple-choice quizzes. The course employed a modified “Doomsday Contingency”, requiring each student to achieve 80% mastery on one of the four weekly quizzes or drop the course. Quizzes were given in small groups and scored individually, while the student stood near, by an undergraduate proctor assigned to that group. The proctor was asked to show interest in the students' quiz performances, help clear up difficult areas, and develop a friendly working relationship with each student. While many students passed the quiz on the first attempt, others were given individual tutoring, so that no one was in fact forced to drop the course. In addition to the weekly quiz assignment, students in the contingency managed group were asked to attend one lecture each week. While the contingency management course procedures had much in common with PSI (Keller, Journal of Applied Behavior Analysis, 1968, 1 , 79–89), several departures made them unique. First, self-pacing was curtailed because students were required to master one unit per week or drop the course. Second, proctors met with students in small groups, usually giving individual tutoring only to those students who did not pass the quiz on the first attempt. Finally, students were asked to attend one lecture per week. Students in the conventional lecture group were not asked to pass weekly quizzes, but instead attended three 50-min lectures each week. Two of these lectures followed the textbook material closely, while the third, which was also attended by students from the contingency management course, covered material only indirectly related to the text. This partition of lecture content allowed material to be similar across the two instructional groups. Although students in the lecture condition were told they could obtain copies of the quizzes, few of them did so. Course grades were determined by scores on two 45-item multiple-choice hourly exams, each covering half the semester material (each worth 25%), and by a 90-item final exam, which served as a measure of short-term retention. Before analyzing the follow-up data, several characteristics of the returning students were compared to determine the comparability of the sample from the two original classes. Most important, both attrition and the current mean GPAs of students from the two classes were very similar. These considerations, and others, suggested there was no systematic sampling bias to confound comparisons of student performance. A 2 (contingency management versus traditional lecture) by 3 (high, medium, and low GPA) analysis of variance was computed on the course final-exam scores and the follow-up measures. Instructional procedure and GPA interacted on the final exam such that low and medium GPA students performed significantly better under contingency management, but there was no significant effect of instructional procedure with high GPA students. On the 2-yr retention measures, students from the contingency management course performed significantly (p < 0.01) better on items drawn from quizzes used in their original course, and marginally better (p < 0.10) on items drawn from the final exams, but no interactions with GPA appeared. Furthermore, instructional method produced no significant main effects or interaction with how many students became majors or minors in psychology, how many psychology courses were later taken, how many books in psychology were reported to have been read, or on students' evaluation of the interest and importance of psychology.     

Binocular interactions in flicker

Sherrington's (1904) study of binocular flicker was extended by measuring observers' sensitivity to light that was modulated sinusoidally at frequencies between 0·1 and 50 Hz. Compared with the condition in which both eyes are stimulated in-phase, about 40% more modulation is needed to detect high-frequency flicker when the two eyes are stimulated in counterphase; at low frequencies this difference is even greater. These results suggest that the earlier c.f.f. studies underestimate the amount of binocular interaction in the detection of flicker.     

cTRAIN: A computer-aided training system developed in SuperCard for teaching skills using behavioral education principles

A computer-aided training program was developed in SuperCard and piloted with professional painters. Taking a modern programmed-instruction/behavioral-education approach, cTRAIN is structured as a series ofinformation sets. Each information set consists of a series of informationscreens (three to five recommended) followed by quiz screens (one to three recommended) structured as fourresponse multiple choice questions. Correct quiz responses produce positive feedback and continuation in the series, whereas incorrect responses result in “error“ feedback and return the student to the beginning of the information set to repeat the same information screens and the same quiz question. This report demonstrates a specific implementation, respiratory protection requirements, using the flexible cTRAIN system for developing training modules. Fifteen adults completed the respiratory protection program, demonstrating substantial and significant (p < .0001 by pairedt test) gains from baseline pretest (19.4 out of 30 questions) to the immediate posttest (28.1). Performance remained elevated (26.4) on a retest taken 1 week later.     

The development of spatial understanding in infancy

This paper examines the development of spatial understanding between 8 and 24 months. In particular, it examines whether young infants code changes in the position of an object or themselves in geographic or egocentric terms. The infants sat in a baby chair which was attached to a circular table in such a way that either the infant could be rotated around the edge of the table or the table-top itself could be rotated. Rotation of infant or table could be performed independently or simultaneously. Infants were shown an object which was then hidden under one of either two or three identical cups sitting on the table. Before the infant was allowed to search for the toy, either the table, the infant, or both were rotated, a procedure which resulted in an invisible displacement of the object in terms of geographical and/or egocentric spatial position. Rotations of 60, 90, 120, and 180° were used. Three groups of infants were tested, one cross-sectional (12–24 months), one longitudinal (12–24 months), and one consisting of a group of infants already known to be accelerated in object concept development (8–20 months). The cross-sectional results indicated that egocentric responding continues well into the second half of the second year of life. Even with fortnightly exposure to the tasks, egocentric responding was still evident in some longitudinal babies as late as 19 months. The results of the accelerated group suggest that acceleration through the sequence of object concept development facilitates development of spatial understanding in a wider sense, that is, in the sense of understanding the interrelation of positions in space. The implications of these results for competing theories of the source of object concept errors are discussed.     

Wentzel–Kramers–Brillouin solution of cut-off frequency for horizontal shear (SH) waves in various inhomogeneous thin films

The Wentzel–Kramers–Brillouin method is employed to study the cut-off frequencies of the horizontal shear waves in a freestanding functionally graded piezoelectric–piezomagnetic material film with the electrically and magnetically open boundary conditions. An analytical solution, which could be used in analyzing the problems of various functionally graded materials, is proven to have high precision by analytical analysis and a numerical example. The results reveal that the set of cut-off frequencies is a series of approximate arithmetic progressions. A theoretical foundation based on the relationship between the cut-off frequencies and the materials’ gradient property is established for nondestructive evaluation.     

Infant communication and the mother–infant relationship: The importance of level of risk and construct measurement

Infants' emerging communication skills are understood to be associated with the maternal relationship, particularly for children experiencing high levels of social risk. This study attempts to determine the extent to which this association is influenced by (a) the mental health risk of the dyad and (b) different operational definitions and measurement of both the dyadic relationship and the construct of “communication.” Ninety‐six infants (10–30 months) and their mothers were recruited: A total of 46 were at‐risk dyads referred to a mental health clinic for relationship‐based emotional and/or behavioral difficulties, and 50 were nonrisk dyads not seeking mental health services and served as a normative reference or comparison group. Several factors were assessed: (a) developmental competence, (b) maternal psychopathology, (c) quality of mother–infant interaction during play, (d) attachment security classification, (e) prelinguistic and social‐affective communication, and (f) linguistic communication. In all infants studied, the quality of mother–infant interaction during play, rather than the attachment security classification, was associated with infants' prelinguistic and social‐affective communication abilities, but not with linguistic communication. Different aspects of mother–infant interaction predicted prelinguistic communication for clinic and comparison infants whereas only infant age predicted linguistic communication. All infants displayed communication abilities in the normal range, but the statistically poorer performance demonstrated by clinic‐referred infants could become clinically meaningful in later childhood. Best practices should include communication screening of infants presenting with attachment problems and screening for relational difficulties in infants presenting with communication delays. ©2004 Michigan Association for Infant Mental Health.     

Visual search with meaningful and non-meaningful material

Two experiments are reported which attempt to assess the effects of variations in target word, context items and instructions on performance in a visual search task. In Experiment 1, subjects were required to search through context lists of three-letter nonsense syllables (of either high or low association value) for three-letter meaningful target words (of either high or low frequency). They were given either “positive” or “negative” instructions, i.e. were told either to pick out the meaningful word or to pick out the word which was not a nonsense syllable. The results showed that visual search times were significantly influenced by both frequency of target word and association value of context items. A significant interaction was observed between type of instructions and target word frequency. The design of Experiment 2 followed that of Experiment 1, with the exceptions that nonsense syllables now became target items, and meaningful words formed the contexts. Again, nonsense syllable association value and word frequency were found to be critical in determining visual search times.     

Signal-detection analysis of recognition memory of obese subjects

Obese and normal-weight subjects were run on a series of recognition-memory tasks with low and high meaningful CVC trigrams. Subjects received feedback or no feedback regarding the appropriateness of their answers during testing for recognition memory. A signal-detection analysis was used to examine a relatively pure index of memory (d') as compared to response-bias factors [Ln (beta)]. No significant main effect on memory of obese and control subjects was noted although a significant interaction indicated that obese subjects' memory increases over trials in a differential fashion from normal-weight individuals with poorer performance among the obese after 3 trials. Feedback facilitated memory for both groups. Analysis of response criteria [Ln (beta)] showed no significant difference between groups. Highly meaningful trigrams had a significantly lower response criterion than low meaningful trigrams and there was a significant interaction of meaningfulness by trials. An interaction of feedback by meaningfulness was also present. Advantages of using a signal-detection analysis in memory studies comparing obese and normal weight subjects are discussed. Ramifications of the present data for the internality/externality hypothesis of obesity are also discussed.     

Course-of-action theory in table tennis: a qualitative analysis of the knowledge used by three elite players during matches

The course-of-action theory (J. Theureau, Le Cours d'action: Analyse Sémiologique, 1992) provided the framework for this study, which described how expert table tennis players' mobilized knowledge in relation with their mode of involvement (exploratory and executory). Matches were videotaped during international meets and the verbalizations of the players as they viewed the tapes were collected a posteriori. The data were processed by transcribing the players' actions and verbalizations, decomposing their activity into elementary units of meaning, labeling the constituents of these units, identifying typical exploratory and executory sequences. The results showed that the knowledge mobilized by the players during the matches differed with their mode of involvement. Knowledge was continuously put into relationship with significant elements in the unfolding situation in order to create interpretive chains, and this contributed to building a meaningful world for the players. The players' cognitive activity was thus revealed to be a permanent construction of meaning aimed at reducing uncertainty in situations of competitive interaction.     

Cheat and you Lose! Don’t Cheat and you Lose! Reflections and Analysis of Accounting Student Data

During 2012 students enrolled in a Master’s management accounting unit were invited to complete a compulsory class quiz, which was arranged to include a mild form of deception allowing them an opportunity to cheat. Prior to the test students were coached concerning the importance of the ICMA code of ethical conduct, which formed the basis of the quiz. Following the test, students were made aware of the deception and asked to judge the propriety of their actions using a research instrument based on moral intensity theory (Jones in The Academy of Management Review, 16(2), 366–395, 1991). Academic dishonesty, in its many forms is endemic in universities and in this study a significant number of students take advantage of an opportunity to maximise test scores and earn an advertised reward by cheating. Others adopted a virtuous position and opted not to use the information. As reported from an earlier investigation, Woodbine and Amirthalingam (2013) again demonstrate the effect of cognitive dissonance (Festinger 1957) although previously the research instrument did not clearly differentiate between respondent types. A logistic regression of subsequent data establishes that high achievers (in terms of their test scores) are more likely to take advantage of the disclosed information to maximise scores and that this is somewhat offset by aspects of their moral character. Immediately following the field experiment, students met to reflect on their actions. A summary of their responses is provided, which tends to support prior evidence that many are somewhat blasé in their attitude to this form of opportunistic behaviour. These findings have ramifications in terms of the way tertiary institutions emphasise academic excellence before moral development, while acting to manage the incidence of misbehaviour.     

The Demand–Control model and target's reports of bullying at work: A test within Spanish and Belgian blue-collar workers

The present study explores whether Karasek's Job Demand–Control (JDC) model's strain hypothesis can be applied to target's reports of bullying at work in matched samples of Spanish and Belgian blue-collar workers. In the Spanish sample, results reveal a positive main effect of workload and a negative main effect of autonomy. The relationship between workload and bullying is particularly strong under the condition of low autonomy (i.e., interaction), in line with Karasek's strain hypothesis. In the Belgian sample, results show a positive main effect of workload and a significant workload–autonomy interaction effect in accordance with the strain hypothesis. In sum, high strain jobs associate with target's reports of bullying in both the Spanish and Belgian sample. Karasek's JDC model may accordingly be extended to target's reports of bullying as a form of social behavioural strain. These findings furthermore enhance research in the realm of bullying at work by introducing a well-established theoretical framework to account for the relationship between workload, autonomy, and target's reports of bullying.     

Structure and pragmatics of a self-theory of memory

Eight hundred ninety-three students completed statements from a questionnaire concerning their perceptions of their memory abilities. Twenty-nine memory domains and experiences, such as memory for smells or memory for names, were distributed across 60 statements in the questionnaire. A factor analysis yielded three meaningful factors: (1) a verbal memory factor, which included memory for names, trivia, and words; (2)a personal past memory factor, which included memory for childhood, dreams, painful experiences, and smells; and (3) an appointments factor, which included memory for appointments, personal articles, anniversaries, and so on. Factor scores from the first factor were used in two subsequent experiments: In one, factor scores correlated with performance on a trivia questionnaire; in the other, factor scores correlated with the amount of play money wagered in a twocontestant trivia quiz. Results of both studies suggested that attempts to validate the factors with behavioral measures would succeed. The framework of self-theory of memory was used in discussing the results and in suggesting directions for future inquiry.     

Variables in Psychology: A Critique of Quantitative Psychology

Mind is hidden from direct observation; it can be studied only by observing behavior. Variables encode information about behaviors. There is no one-to-one correspondence between behaviors and mental events underlying the behaviors, however. In order to understand mind it would be necessary to understand exactly what information is represented in variables. This aim cannot be reached after variables are already encoded. Therefore, statistical data analysis can be very misleading in studies aimed at understanding mind that underlies behavior. In this article different kinds of information that can be represented in variables are described. It is shown how informational ambiguity of variables leads to problems of theoretically meaningful interpretation of the results of statistical data analysis procedures in terms of hidden mental processes. Reasons are provided why presence of dependence between variables does not imply causal relationship between events represented by variables and absence of dependence between variables cannot rule out the causal dependence of events represented by variables. It is concluded that variable-psychology has a very limited range of application for the development of a theory of mind—psychology.

Highlights as an Early Predictor of Student Comprehension and Interests

When engaging with a textbook, students are inclined to highlight key content. Although students believe that highlighting and subsequent review of the highlights will further their educational goals, the psychological literature provides little evidence of benefits. Nonetheless, a student’s choice of text for highlighting may serve as a window into her mental state—her level of comprehension, grasp of the key ideas, reading goals, and so on. We explore this hypothesis via an experiment in which 400 participants read three sections from a college-level biology text, briefly reviewed the text, and then took a quiz on the material. During initial reading, participants were able to highlight words, phrases, and sentences, and these highlights were displayed along with the complete text during the subsequent review. Consistent with past research, the amount of highlighted material is unrelated to quiz performance. Nonetheless, highlighting patterns may allow us to infer reader comprehension and interests. Using multiple representations of the highlighting patterns, we built probabilistic models to predict quiz performance and matrix factorization models to predict what content would be highlighted in one passage from highlights in other passages. We find that quiz score prediction accuracy reliably improves with the inclusion of highlighting data (by about 1%–2%), both for held-out students and for held-out student questions (i.e., questions selected randomly for each student), but not for held-out questions. Furthermore, an individual’s highlighting pattern is informative of what she highlights elsewhere. Our long-term goal is to design digital textbooks that serve not only as conduits of information into the reader’s mind but also allow us to draw inferences about the reader at a point where interventions may increase the effectiveness of the material.