This review addresses conceptual and empirical research about how individual agency and
motivation influences development during adulthood and old age. The major life-span …

This article had four goals. First, the authors identified a set of general challenges and
questions that a life-span theory of development should address. Second, they presented a …

We discuss the development of Eccles, Wigfield, and colleagues' expectancy-value model of
achievement motivation (now called SEVT for situated expectancy value theory) and review …

With the growth and competition of the smartphone industry, developing a better
understanding of what drives consumers' loyalty to smartphone brands has become an …

Progress and issues in the study of coping with stress during childhood and adolescence
are reviewed. Definitions of coping are considered, and the relationship between coping …

This is the third English edition of Motivation and Action, an extensively revised version of
the second English edition and fifth German edition, with four entirely new chapters. All …

Life-span developmental psychology deais with the study of individual development
(ontogenesis) from conception into old age (P. Baltes & Goulet, 1970; P. Baltes & Reese …

A life-span theory of development is presented that is based on the concepts of primary and
secondary control. Primary control refers to behaviors directed at the external environment …

Integrating more than 40 years of studies on locus of control (LOC), this meta-analysis
investigated whether (a) the magnitude of the relationship between LOC and psychological …

Positive and negative affect, measured by the Bradburn Affect Balance Scale, were studied
in a longitudinal sample spanning from 1971 to 1994. The sample (N= 2,804) represented 4 …