Considering Locus of Control 2024 Assessment name: Rotter’s Locus of Control Scale Scale overview: Rotter’s Locus of Control Scale is a 29-item measure of beliefs about external or internal sources of influence on one’s life. The scale is also referred to as LCS. Author: Julian Rotter Response Type: Forced choice between two items. Scale items: See the items at the bottom of this post. Psychometric properties: A review of internal consistency values from several studies revealed a mean of .663 and test-retest mean of .663 (Huizing, 2015). Klockars, A. J., & Varnum, S. W. (1975) found six factors suggesting the scale measures multiple dimensions. Lange and Tiggermann (2010) reported test-retest reliability of .61 in their sample. Comment : Some researchers have questioned the structure of the original scale in terms of its ability to clearly measure either internal or external locus of control. Additional measures have been developed including a measure
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