Locus of control
In personality psychology, locus of control refers to the extent to which individuals believe they can control events affecting them. Understanding of the concept was developed by Julian B. Rotter in 1954, and has since become an aspect of personality studies. A person’s “locus” (Latin for “place” or “location”) is conceptualized as either internal (the person believes they can control their life) or external (meaning they believe their decisions and life are controlled by environmental factors which they cannot influence, or by chance or fate).
Individuals with a strong internal locus of control believe events in their life derive primarily from their own actions: for example, when receiving exam results, people with an internal locus of control tend to praise or blame themselves and their abilities. People with a strong external locus of control tend to praise or blame external factors such as the teacher or the exam.
Locus of control is the framework of Rotter’s (1954) social-learning theory of personality. In 1966 he published an article in Psychological Monographs which summarized over a decade of research (by Rotter and his students), much of it previously unpublished. In 1976, Herbert M. Lefcourt defined the perceived locus of control: “…a generalised expectancy for internal as opposed to external control of reinforcements”. Attempts have been made to trace the genesis of the concept to the work of Alfred Adler, but its immediate background lies in the work of Rotter and his students. Early work on the topic of expectations about control of reinforcement had been performed in the 1950s by James and Phares (prepared for unpublished doctoral dissertations supervised by Rotter at The Ohio State University).
Additional research led to the hypothesis that typical expectancy shifts were displayed more often by those who attributed their outcomes to ability, whereas those who displayed atypical expectancy were more likely to attribute their outcomes to chance. This was interpreted that people could be divided into those who attribute to ability (an internal cause) versus those who attribute to luck (an external cause). Bernard Weiner argued that rather than ability-versus-luck, locus may relate to whether attributions are made to stable or unstable causes. of
Rotter (1975, 1989) has discussed problems and misconceptions in others’ use of the internal-versus-external construct.
Locus of control is one of the four dimensions of core self-evaluations – one’s fundamental appraisal of oneself – along with neuroticism, self-efficacy, and self-esteem. The concept of core self-evaluations was first examined by Judge, Locke, and Durham (1997), and since has proven to have the ability to predict several work outcomes, specifically, job satisfaction and job performance. In a follow-up study, Judge et al. (2002) argued the concepts of locus of control, neuroticism, self-efficacy and self-esteem measured the same, single factor.
Mood disturbance (Mood disorder)
Mood disorder is a group of diagnoses in the Diagnostic and Statistical Manual of Mental Disorders classification system where a disturbance in the person’s mood is hypothesized to be the main underlying feature. The classification is known as mood (affective) disorders in International Classification of Diseases (ICD).
English psychiatrist Henry Maudsley proposed an overarching category of affective disorder. The term was then replaced by mood disorder, as the latter term refers to the underlying or longitudinal emotional state, whereas the former refers to the external expression observed by others.
Mood disorders fall into the basic groups of elevated mood, such as mania or hypomania; depressed mood, of which the best-known and most researched is major depressive disorder (MDD) (commonly called clinical depression, unipolar depression, or major depression); and moods which cycle between mania and depression, known as bipolar disorder (BD) (formerly known as manic depression). There are several sub-types of depressive disorders or psychiatric syndromes featuring less severe symptoms such as dysthymic disorder (similar to but milder than MDD) and cyclothymic disorder (similar to but milder than BD). Mood disorders may also be substance-induced or occur in response to a medical condition.
The classifications of Mood disturbance are depressive disorders, bipolar disorders, substance-induced, alcohol-induced, benzodiazepine-induced, due to another medical condition, not otherwise specified.
- https://en.wikipedia.org/wiki/Locus_of_control
- https://en.wikipedia.org/wiki/Mood_disorder