Efficacy


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Efficacy

In lighting design, a measure of the luminous efficiency of a specified light source, expressed in lumens per watt. For daylighting, this is the quotient of visible light incident on a surface to the total light energy on that surface. For electric sources, this is the quotient of the total luminous flux emitted by the total lamp power input.

luminous efficacy

The ratio of the total emitted luminous flux, in lumens, to the total electric power consumption in watts.
References in periodicals archive ?
Mastery Experience: Individuals develop a strong belief in their personal efficacy when they are successful, while failure weakens this belief.
The strength of one's belief that one can successfully perform a task, also known as efficacy expectation, will determine that person's effort and persistence during performance.
Parada, et al (2014) investigated a study to compare and measure the relationship between depression, anxiety and self efficacy among 52 persons with myasthenia gravis.
High level of teacher efficacy entails in high level of students' learning (Anderson, Greene, and Loewen, 1988; Ross, 1992).
According to the EPPM, when individuals are exposed to a message regarding a threat, there are two stages in the cognitive appraisal of the message: first, the "appraisal of the threat," and second, the "appraisal of the efficacy of the message's recommended response" (Witte, Meyer, & Martell, 2001, p.
The mean marketed clinical efficacy was 82.2 percent (range, 55 to 100 percent) for the 36 centers that provided information on clinical efficacy.
Through self-monitoring of their learning, self-regulators will take note of their progress as a result of successful application of effective learning strategies, and feelings of efficacy for learning will increase.
The General Self-Efficacy Scale help to assess comprehensive and steady belief of competency, with that it also assess the individual general sense of efficacy in dealing with different life stresses and new life demands.
However, individuals new to a task often rely on the appraisal of others, as opposed to their own evaluation, to help determine self- efficacy (Usher & Pajares, 2008).
Higher scores represent higher self efficacy. Many empirical studies have demonstrated that the Cronbach's alpha and test-retest reliability of this scale are 0.75 to 0.94 and 0.55 to 0.75, respectively.
Key words: Political talk shows, political efficacy, political participation, talk shows exposure, and demographic factors