Normative Scoring of Multidimensional Pairwise Preference Personality Scales Using IRT: Empirical Comparisons With Other Formats

In this article, we offer some suggestions as to why tetrads and pentads have become the dominant formats for administering multidimensional forced choice (MFC) items but, in turn, raise questions regarding the underlying psychometric model and means of addressing item quality and scoring accuracy. We then focus our attention on multidimensional pairwise preference (MDPP) items and present an item response theory–based approach to constructing and modeling MDPP responses directly, assessing information at the item and scale levels, and a way of computing standard errors for trait scores and estimating scale reliability. To demonstrate the viability of this method for applied use, we show that the correspondence between MDPP scores derived from direct modeling with those obtained using single statement and unidimensional pairwise preference measures administered in a laboratory setting. Trait score correlations and criterion related validities are compared across testing formats and rating sources (i.e., self and other), and the usefulness of our model-based approach is further demonstrated by some illustrative results involving computerized adaptive tests (CAT).     

A Change of Perspective: Seeing Through Children at the Front of the Classroom, to Seeing Children from the Back of the Classroom

This article considers a noted trend by teacher educators at a South African University where student teachers seem to have very little connection with children they teach on their teaching practicals. This lack of engagement and ability to see individual children that are being taught and respond to them is the focus of the paper. The paper considers how such a circumstance may come into being by looking at socio-historical practices in education through a Foucauldian lens using the notions of government and governmentality. Ways in which people were managed and dominant forms of knowledge and being are in tension with curricular shift that construct children as competent and able. It then proposes that within teacher education a shift of perspective is needed in enabling students to ‘look’ at the children in their classrooms in a deeper, more engaged way. This draws from research methods that use observation as for researchers to understand participants through their eyes (Hatch A, Doing qualitative research in education settings, State University of New York Press, Albany, 2002). Three examples are given from classroom observations as a way of exploring what close observations of children can teach us about children’s needs and interests. The paper concludes with a general framework students might draw on that places children as the focus in the classroom.     

Spearman's law of diminishing returns: A statistical artifact?

Spearman's Law of Diminishing Returns (SLODR) is the idea that the structure of human cognitive ability is more differentiated and g a weaker determinant of cognitive performance at higher levels of ability. In this study, we distinguish between ‘traditional’ methods of testing SLODR and ‘contemporary’ methods of testing SLODR. It is the former set of methods from which the vast majority of the evidence base for SLODR derives. We demonstrated that it is easy to mimic SLODR and reverse SLODR effects in these traditional methods of assessing SLODR by using data with skewed observed variable distributions. The skewness magnitudes did not need to be large to produce these effects and they fell well within the range of values that are usually considered unproblematic for parametric statistic analysis. In simulated datasets, positive subtest skewness resulted in SLODR and negative subtest skewness resulted in reverse SLODR. In contemporary methods of testing SLODR, non-linear g-loadings or a skewed g are assumed to reflect evidence for SLODR. When we applied contemporary methods of testing SLODR to these data, there was evidence of heteroscedastic residuals but no evidence of non-linear g-loadings or skewed g distributions. We broadly replicated the effects of subtest skew from these simulated datasets in real data from the Minnesota Study of Twins Reared Apart. Results imply that traditional methods of assessing SLODR cannot distinguish between effects due to subtest characteristics that have nothing to do with differences in ability structure at different levels of g and true SLODR effects. This calls into question the empirical support for SLODR.     

Self-determination and functional persuasion to encourage physical activity

This research advances a novel approach to promoting physical activity, based on the principle of functional matching in persuasion, and the self-concordance (SC) of people's motivations for physical activity. We propose that SC establishes a positive or negative orientation toward the challenge inherent in physical activity, and that the maximum yield of participation will be achieved by communications that appeal to each orientation. In two studies, we compared how messages emphasizing challenge versus available social support would influence recipients’ self-reported practices of physical activity and attitudes toward a physical activity setting. As hypothesized, these messages had differential effects for recipients whose pursuit of physical activity varied in SC, such that favorable outcomes were more reliably associated with challenge-oriented messages among respondents higher in SC versus support-oriented messages among respondents lower in SC. The findings suggest the merits of using self-regulatory, compared with object- or personality-based, constructs and measures to indicate psychological functions of ongoing health-related behaviors.     

Cognition and Emotion in TV Message Processing: How Valence,Arousing Content,Structural Complexity,and Information Density Affect the Availability of Cognitive Resources

This paper examines whether emotional message content alters the effects of structural complexity and information density on available resources, measured by secondary task reaction times (STRTs), and message encoding, measured by audio recognition. In addition, hypotheses relating motivational activation and resource availability based on the motivational activation concepts of positivity offset (greater appetitive activation in a neutral environment) and negativity bias (faster aversive activation) influence are tested. Results replicate previous research supporting the contention that STRTs measure available resources. In addition, they show that the basic pattern of STRTs and recognition as a function of allocated and required resources is relatively consistent regardless of emotional content of the message. Emotion appears to function as a constant, increasing both resource allocation and resources required. Finally, these data provide some initial support for predicted relationships between motivational activation and resource allocation based on the constructs of positivity offset and negativity bias.     

Parts function as perceptual organizational entities in infancy

Both objects and parts function as organizational entities in adult perception. Prior research has indicated that objects affect organization early in life: Infants grouped elements located within object boundaries and segregated them from those located on different objects. Here, we examined whether parts also induce grouping in infancy. Five- and 6.5-month-olds were habituated to two-part objects containing element pairs. In a subsequent test, infants treated groupings of elements that crossed part boundaries as novel, in comparison with groupings that had shared a common part during habituation. In contrast, the same arrangement of elements failed to elicit evidence of grouping in control conditions in which the elements were not surrounded by closed part boundaries. Thus, infants grouped and segregated elements on the basis of part structure. Part-based processing is a key aspect of many theories of perception. The present research adds to this literature by indicating that parts function as organizational entities early in life.     

Father–Daughter Communication About Sex Moderates the Association Between Exposure to MTV’s 16 and Pregnant/Teen Mom and Female Students’ Pregnancy-Risk Behavior

MTV’s hit programs 16 and Pregnant and Teen Mom have been the subject of national debate since their inception. Supporters contend that the shows inhibit pregnancy-risk behavior. Critics contend that the shows glamorize adolescent motherhood and encourage pregnancy-risk behavior. The present study explored the possibility that the association between viewing 16 and Pregnant and Teen Mom and student females’ pregnancy-risk behavior depends on the extent to which females’ parents communicated with them about sex while they were growing up. Survey data were gathered from 313 female students. A disordinal interaction was found between father–daughter sexual communication, viewing frequency, and recent intercourse behavior. Frequent viewing was associated with an increased probability of having engaged in recent intercourse for females whose fathers did not communicate with them about sex while growing up. Conversely, frequent viewing was associated with a decreased probability of having engaged in recent intercourse for females whose fathers often communicated about sex with them while growing up. No interaction was found between mother–daughter sexual communication, viewing frequency, and recent intercourse behavior. These results suggest that fathers may play an especially important role in determining how sexual media socialize their daughters.     

Attentional biases for faces and body parts

In four experiments, we examined whether faces and body parts are processed faster and engage attention more than other objects. Participants searched for a green among blue frames and were asked to make speeded categorical decisions on an object presented within the target frame (e.g., was it food?). On half of the trials a colour singleton (a red frame) was also present and reaction times to targets were measured as a function of the object category within the singleton. The results show that categorical judgements of faces (Experiments 1–3) and body parts (Experiment 4) in the target frame were significantly faster as compared to other object categories. Furthermore, the cost associated with presenting a face or body part in the singleton frame was greater than the cost when another type of object was in the singleton. These results suggest an attentional bias towards stimuli of sociobiological significance such as faces and body parts.