Many children with chronic health conditions encounter enduring difficulties in their peer interactions and friendships. This study aimed to create and validate scales derived from an observational coding system (i.e., Peer Interaction Macro-Coding System, or PIMS) in a sample of children with spina bifida and their peers. Participants were 106 target child-peer dyads who completed a battery of...

BACKGROUND Successfully coping with a chronic disease depends significantly on social support, particularly that of a significant other. Thus, it depends on the ways of dealing with stress within a couple (dyadic coping). In this study, the relationship between dyadic coping and well-being was investigated among couples in which one partner suffers from chronic obstructive pulmonary disease (CO...

We discuss the logic of research designs for dyadic interaction and present statistical models with parameters that are tied to psychologically relevant constructs. Building on Karl Pearson's classic nineteenth-century statistical analysis of within-organism similarity, we describe several approaches to indexing dyadic interdependence and provide graphical methods for visualizing dyadic data. W...

Gestures produced by language learners have a positive impact on interactions; however, few studies examined natural conversation data focusing learner’s spoken proficiency level. This study investigates gesture use among of English as second with varying levels (beginner, intermediate, and advanced) to determine whether type (e.g., iconic, deictic, metaphoric, beat gestures) differ 17 video-reco...

A matroid or oriented matroid is dyadic if it has a rational representation with all nonzero subde-terminants in ff2 k : k 2 Zg. Our main theorem is that an oriented matroid is dyadic if and only if the underlying matroid is ternary. A consequence of our theorem is the recent result of G. Whittle that a rational matroid is dyadic if and only if it is ternary. Along the way, we establish that ea...

Friendly postconflict (PC) interactions between former opponents have been described for a large number of primate species held in captivity. We investigated conflict management behaviour for wild Hanuman langurs, Semnopithecus (Presbytis) entellus entellus, in India, using a large sample of over 6000 agonistic and affinitive interactions recorded in one one-male/multifemale troop and three all...

Language has long been identified as a powerful communicative tool among humans. Yet, pre-linguistic communication, which is common in many species, is also used by human infants prior to the acquisition of language. The potential communicational value of pre-linguistic vocal interactions between human infants and mothers has been studied in the past decades. With 120 dyads (mothers and three- ...

This study is an extension of previous observational work on the social ecology of dependence and independence in the institutionalized elderly. Observations of everyday, naturally occurring interactions between elderly residents of two different long-term institutions and their social partners were extended such that, aside from the identification of type of behavior, the dyadic form and conti...

This study aimed to describe the quality of the intimate relationship among parents six months after the birth of their first child. The Dyadic Adjustment Scale (DAS) has been modified and used on 820 responding first-time parents, of which 768 were couples. The results reveal that most parents were happy in their relationship, but both mothers and fathers were discontented with the dyadic sexu...

In this paper we present some results on summability of oneand multi-dimensional Walsh-, Walsh-Kaczmarzand Vilenkin-Fourier series and on the dyadic and Vilenkin derivative. The Fejér and Cesàro summability methods are investigated. We will prove that the maximal operator of the summability means is bounded from the martingale Hardy space Hp to Lp (p > p0). For p = 1 we obtain a weak type inequ...