In this paper we present a method to detect natural groups in a data set, based on hierarchical clustering. A measure of the meaningfulness of clusters, derived from a background model assuming no class structure in the data, provides a way to compare clusters, and leads to a cluster validity criterion. This criterion is applied to every cluster in the nested structure. While all clusters passi...

We formulated, tested, and supported, in 6 studies, a theoretical model according to which individuals use nostalgia as a way to reinject meaningfulness in their lives when they experience boredom. Studies 1-3 established that induced boredom causes increases in nostalgia when participants have the opportunity to revert to their past. Studies 4 and 5 examined search for meaning as a mediator of...

Measures of subjective wellbeing (SWB) are used to understand how people think and feel about their lives and experiences. But the measure used matters to conclusions about how well people's lives are going. This research compares life evaluations and experienced SWB using nationally representative time use diaries, advancing previous research because diaries are less subject to recall biases t...

Our study investigates the process of topic comprehension in comparative sentences and the relationship between this process and the word order of topic and vehicle. Our experiment used a meaningfulness decision task with three conditions: no-vehicle sentence (e.g. a word hurts someone), vehicle-after-topic sentence (e.g. a word, like a weapon, hurts someone), and vehicle-before-topic sentence ...

In contextual cueing, the position of a search target is learned over repeated exposures to a visual display. The strength of this effect varies across stimulus types. For example, real-world scene contexts give rise to larger search benefits than contexts composed of letters or shapes. We investigated whether such differences in learning can be at least partially explained by the degree of sem...

In this essay, we appeal to conceptual and empirical research establish that autonomy meaningfulness, when understood concretely realistically, remain possible for frail dependent elders. Contrary ageist cultural attitudes, relationships render frailty dependence compatible with the exercise of autonomous agency a life meaning. This conclusion is important not only goal supporting elders but al...

RATIONALE As support in leading a meaningful and active life, a person with mental illness is often given the opportunity to attend a day centre. However, few studies have investigated the meaningfulness perceived by the person visiting a day centre. For such a purpose, a self-report instrument was developed. AIMS To explore whether perceived meaningfulness, as expressed in the recently devel...

In this paper, we revisit the problem of retrieving meaningful result for XML keyword search. We begin by introducing the concept of Relaxed Tightest Fragment (RTF) as the basic result type, which preserves all the related keyword nodes implied in corresponding fragments in the XML data. This is different from the prior popular proposals like LCA (Lowest Common Ancestor), SLCA (Smallest LCA) va...

In four methodologically diverse studies (N = 644), we found correlational (Study 1), longitudinal (Study 2), and experimental (Studies 3 and 4) evidence that a sense of belonging predicts how meaningful life is perceived to be. In Study 1 (n = 126), we found a strong positive correlation between sense of belonging and meaningfulness. In Study 2 (n = 248), we found that initial levels of sense ...