The present article includes separate meta-analyses showing that self-concordance and implementation intentions are significantly positively associated with goal progress. Study 1 confirmed the positive relations of both self-concordance and implementation intentions to weekend goal progress. Study 2 confirmed the positive relation of self-concordance with monthly progress on New Year's resolut...

We show that deciding whether a convex function is self-concordant is in general an intractable problem.

The usual approach to computing empirical likelihood for the mean uses Newton’s method after eliminating a Lagrange multiplier and replacing the function − log(x) by a quadratic Taylor approximation to the left of 1/n. This paper replaces the quadratic approximation by a quartic. The result is a self-concordant function for which Newton’s method with backtracking has theoretical convergence gua...

Sheldon and colleagues have recently focused research attention on the concept of self-concordance, in which people feel that they pursue their goals because the goals fit with their underlying interests and values rather than because others say they should pursue them. Self-concordant individuals typically evidence higher subjective well-being (SWB). But is this also true in non-Western cultur...

 Many efficient interior-point methods (IPMs) are based on the use of a self-concordant barrier function for the domain of the problem that has to be solved. Recently, a wide class of new barrier functions has been introduced in which the functions are not self-concordant, but despite this fact give rise to efficient IPMs. Here, we introduce the notion of locally self-concordant barrier functio...

Self-informant rating concordance for attention-deficit/hyperactivity disorder (ADHD) symptoms was assessed in 281 adults at the subscale (Inattention, Hyperactivity-Impulsivity) and individual symptom levels. Potential demographic, diagnostic, and informant identity moderators were also investigated. Concordance levels were similar for current and childhood symptoms. Although moderate positive...

BACKGROUND Non-concordance with medication remains a major public health problem that imposes a considerable financial burden on the health care system, and there is still a need for studies on correlates of non-concordance. Our first aim is to analyse whether any of the individual characteristics age, educational level, financial strain, self-rated health, social participation, and trust in th...

Pursuing personal goals is an important way that people organize their behavior and mature as individuals. However, because people are typically unaware of their own implicit motivations and potentials, they may pick goals that do not serve them well. This article suggests that "self-concordant" goal selection is a difficult self-perceptual skill, with important ramifications for thriving. Vari...