Differentiating insight from non-insight problems

This study aimed to investigate whether a range of tasks that have been generally classed as requiring insight form an empirically separable group of tasks distinct from tasks generally classed as non-insight. In this study, 24 insight tasks, 10 non-insight tasks, and tests of individual differences in cognitive abilities and working memory were administered to 60 participants. Cluster analysis of the problem-solving tasks indicated that the presumed insight problems did tend to cluster with other presumed insight problems, and similarly the presumed non-insight problems tended to cluster with other presumed non-insight tasks. Performance on presumed insight problems was particularly linked to measures of ideational flexibility with a different pattern of results for the non-insight tasks. Spatial insight problems were linked to spatial flexibility and verbal insight tasks were linked to vocabulary scores. The results are discussed in relation to recent developments of dual process theories of thinking.     

Thinking styles and teachers' characteristics

This study had two goals. The first was to validate further Sternberg's theory of mental self‐government in a cross‐cultural setting. The second was to investigate the relationship between thinking styles and teachers' characteristics. Research participants were one hundred ninety‐three (65 male and 128 female) in‐service teachers studying in the Bachelor of Education degree program and the Postgraduate Certificate in Education program at the University of Hong Kong. The participants responded to the Chinese version of the Thinking Styles Questionnaire for Teachers (TSQT) that has its theoretical foundation in Sternberg's theory of mental self‐government. They also provided a range of demographic information such as age, gender, family income, and duration of their teaching experience. Furthermore, they rated themselves on a 5‐point Likert scale about their teaching practices and about their perceptions of their school environment. The results of the study showed that the TSQT is a reliable and valid inventory for assessing the thinking styles of primary and secondary school in‐service teachers in Hong Kong. Cronbach's alphas ranged from .58 to .75, with a mean of .68 and a median of .66. A principal‐axis factor analysis followed by an oblique rotation resulted in two factors that accounted for 73.8% of the variance in the data. Moreover, results from stepwise multiple‐regression procedures indicated that six characteristics of teachers were significantly correlated with the thinking styles specified by the theory of mental self‐government. These teacher characteristics are gender, professional work experience outside school settings, the degree of enjoying adopting new teaching materials, a tendency for using group projects in assessing student achievement, perceived autonomy for determining their teaching contents, and their rating of the quality of their students. We discussed seven possibilities for using the knowledge about thinking styles to facilitate an enhancement of teaching and learning.     

Separate modifiability, mental modules, and the use of pure and composite measures to reveal them

How can we divide a complex mental process into meaningful parts? In this paper, I explore an approach in which processes are divided into parts that are modular in the sense of being separately modifiable. Evidence for separate modifiability is provided by an instance of selective influence: two factors F and G (usually experimental manipulations) such that part A is influenced by F but invariant with respect to G, while part B is influenced by G but invariant with respect to F. Such evidence also indicates that the modules are functionally distinct. If we have pure measures MA and MB, each of which reflects only one of the parts, we need to show that MA is influenced by F but not G, while MB is influenced by G but not F. If we have only a composite measure MAB of the entire process, we usually also need to confirm a combination rule for how the parts contribute to MAB. I present a taxonomy of separate-modifiability methods, discuss their inferential logic, and describe several examples in each category. The three categories involve measures that are derived pure (based on different transformations of the same data; example: separation of sensory and decision processes by signal detection theory), direct pure (based on different data; example: selective effects of adaptation on spatial-frequency thresholds), and composite (examples: the multiplicative-factor method for the analysis of response rate; the additive-factor method for the analysis of reaction time). Six of the examples concern behavioral measures and functional processes, while four concern brain measures and neural processes. They have been chosen for their interest and importance; their diversity of measures, species, and combination rules; their illustration of different ways of thinking about data; the questions they suggest about possibilities and limitations of the separate-modifiability approach; and the case they make for the fruitfulness of searching for mental modules.     

Effects of the timing of postevent information on preschoolers' memories of an event

Few researchers have investigated whether the timing of postevent information affects the accuracy of children's reports of events they have experienced. In this study, four‐year‐olds dressed up in costumes and had their photographs taken. An unfamiliar adult spoke to the children about the event either a day (immediate condition) or a month (delayed condition) later, providing both accurate and misleading information about the staged event. When questioned five weeks after the event, children in a control group who had not received the review were more inaccurate answering focused questions than children who had been reminded of the event. A review a while after the event but shortly before the interview increased the amount of details recalled and this was not at the expense of accuracy. Misinformation was seldom reported spontaneously, although children in all groups acquiesced to leading questions in line with the misleading suggestions. Copyright © 1999 John Wiley & Sons, Ltd.     

Emotional selection in memes: the case of urban legends.

This article explores how much memes like urban legends succeed on the basis of informational selection (i.e., truth or a moral lesson) and emotional selection (i.e., the ability to evoke emotions like anger, fear, or disgust). The article focuses on disgust because its elicitors have been precisely described. In Study 1, with controls for informational factors like truth, people were more willing to pass along stories that elicited stronger disgust. Study 2 randomly sampled legends and created versions that varied in disgust; people preferred to pass along versions that produced the highest level of disgust. Study 3 coded legends for specific story motifs that produce disgust (e.g., ingestion of a contaminated substance) and found that legends that contained more disgust motifs were distributed more widely on urban legend Web sites. The conclusion discusses implications of emotional selection for the social marketplace of ideas.     

A Dual-Focus Motivational Intervention to Reduce the Risk of Alcohol-Exposed Pregnancy

Project CHOICES developed an integrated behavioral intervention for prevention of prenatal alcohol exposure in women at high risk for alcohol-exposed pregnancies. Settings included primary care, university-hospital based obstetrical/gynecology practices, an urban jail, substance abuse treatment settings, and a media-recruited sample in three large cities. The intervention was based on motivational interviewing and targeted both adoption of effective contraception and reduction of alcohol use. Treatment included 4 manual-guided sessions delivered by mental health clinicians and 1 contraceptive counseling session delivered by a family planning clinician. This paper describes the rationale for treatment; the use of motivational interviewing and the transtheoretical model for a dual-focused approach to behavior change; the development of the Project CHOICES intervention; development of the study protocol and treatment manual; and selection, training, supervision, and monitoring of study counselors. Implications for future applications of the intervention are discussed.     

The effects of mental context reinstatement on children's accounts of sexual abuse*

Forensic interviewers guided 46.4‐ to 13‐year‐old alleged victims of sexual abuse to recall the context in which the reported incidents had taken place. A comparable group of 50 alleged victims were interviewed using an interview protocol that was identical except that the mental context reinstatement (MCR) techniques were not included. MCR did not increase the total number of event‐related details reported, but it did lead children to reported proportionally more details (55% versus 46%) in response to invitations rather than focused prompts. Such information is more likely to be accurate. MCR had an especially powerful effect on the youngest children (4‐ to 6‐year‐olds) studied. The results suggest that non‐suggestive contextual cues may indeed be useful in forensic interviews. Published in 2001 by John Wiley & Sons, Ltd.     

Cultural influences on artistic creativity and its evaluation

Two studies were designed to compare (a) the rated creativity of artworks created by American and Chinese college students, and (b) the criteria used by American and Chinese judges to evaluate these artworks. The study demonstrated that the two groups of students differed in their artistic creativity. American participants produced more creative and aesthetically pleasing artworks than did their Chinese counterparts, and this difference in performance was recognized by both American and Chinese judges. The difference between the use of criteria by American and Chinese judges was small, and consisted mainly of the American judges' use of stricter standards in evaluating overall creativity. Moreover, in general, there was a greater consensus among Chinese judges regarding what constitutes creativity than among American judges. The study also revealed, but preliminarily, that the artistic creativity of Chinese students was more likely to be reduced as a function of restrictive task constraints or of the absence of explicit instructions to be creative. The results of this study seem to support the hypothesis that an independent self‐oriented culture is more encouraging of the development of artistic creativity than is an interdependent self‐oriented culture. Other possible explanations, such as differences in people's attitudes toward and motivation for engaging in art activities, or socioeconomic factors might also account for differences in people's artistic creativity.     

Two operations in character recognition: Some evidence from reaction-time measurements

Theories of the recognition of a visual character may be divided into three sets.defined by the way in which the stimulus is encoded before being compared to a memorized target character. A character-classification experiment was performed in which the test stimuli were characters that were either intact or degraded by a superimposed pattern. Analyses of reaction-times in the experiment lead to the rejection of two of the three sets of theories. There appear to be at least two separate operations in the recognition or classification of a character. The first encodes the visual stimulus as an abstracted representation of its physical properties. The second, which may occur more than once, compares such a stimulus representation to a memory representation, producing either a match or a mismatch. A theory of high-speed exhaustive scanning in memory underlies the experiment and is given new support. The method of reaction-time analysis that is introduced, an elaboration of the Uelmholtz-Donders subtraction method, may be applicable to the general problem of the invariance ofperceived form under certain transfomations of the stimulus.