Self-Description Questionnaire III (SDQ-III) Test

How the Scales are Structured
Who Usually Takes This Test?
See How You Compare
Below is a preview of how scores are typically distributed across each scale.
Example Questions From the Test
- Strongly disagree
- Disagree
- Neither agree nor disagree
- Agree
- Strongly agree
- Strongly disagree
- Disagree
- Neither agree nor disagree
- Agree
- Strongly agree
- Strongly disagree
- Disagree
- Neither agree nor disagree
- Agree
- Strongly agree
Self-Description Questionnaire III (SDQ-III) Test - Description and methodology of the test
People seeking a structured way to examine their self-perceptions can use the Self-Description Questionnaire III (SDQ-III) Test to consider confidence across social, appearance, and academic domains. This multidimensional self-concept test helps readers see whether their self-view is relatively even or stronger in particular areas. It is intended for reflective, non-clinical self-assessment.
What This Assessment Explores
Across domains, a self-concept questionnaire maps self-perception, including areas of confidence and uncertainty.
The dimensions are:
- Relationships With Men (1-5) measures confidence and satisfaction in relationships with men; Low 1-2.3; Moderate 2.4-3.6; High 3.7-5.
- Relationships With Women (1-5) measures confidence in relationships with women; Low confidence 1-2.3; Moderate confidence 2.4-3.6; High confidence 3.7-5.
- Physical Appearance (1-5) measures self-esteem about appearance and looks; Low 1-2.4; Moderate 2.5-3.4; High 3.5-5.
- Humanities (1-5) measures ability in language, literature, and social sciences; Lower 1-2.4; Moderate 2.5-3.4; Higher 3.5-5.
- Mathematics (1-5) measures mathematical ability and confidence with exact-science tasks; Low 1-2.4; Moderate 2.5-3.4; High 3.5-5.
Methodology and Scientific Basis
Each statement uses five ordered choices: Strongly disagree, Disagree, Neither agree nor disagree, Agree, and Strongly agree. Items sample social, appearance, language, and mathematical self-judgments, giving respondents a consistent frame for rating experience.
The result presents a separate 1-5 score for each domain; higher displayed values reflect stronger self-perception in that domain. This is a comparative profile, not a pass-or-fail total, and it does not establish ability or social success.
The published Self-Description Questionnaire III (SDQ III) is the relevant source instrument for this SDQ-III self-assessment. The online profile should not be interpreted as carrying the published instrument's norms or validation evidence unless equivalence is documented. Marsh’s hierarchical work explains how related domains can coexist, while Shavelson, Hubner, and Stanton describe self-concept as distinct but connected.
The original instrument has a manual and construct-validity research, but the online questionnaire should not be assumed to reproduce its validation sample. Self-report results can shift with mood, recent experience, cultural expectations, and willingness to disclose, so interpret the profile as a reflection prompt rather than a fixed judgment.
- Marsh, H. W., & O'Neill, R. (1984). Self Description Questionnaire III: The construct validity of multidimensional self-concept ratings by late adolescents. Journal of Educational Measurement, 21(2), 153-174. 10.1111/j.1745-3984.1984.tb00227.x
- Marsh, H. W. (1990). Self Description Questionnaire III: SDQ III Manual. University of Western Sydney, Macarthur.
- Marsh, H. W. (1987). The hierarchical structure of self-concept and the application of hierarchical confirmatory factor analysis. Journal of Educational Measurement, 24(1), 17-39. 10.1111/j.1745-3984.1987.tb00259.x
- Shavelson, R. J., Hubner, J. J., & Stanton, G. C. (1976). Self-Concept: Validation of Construct Interpretations. Review of Educational Research, 46(3), 407-441. 10.3102/00346543046003407
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