AN ITEM SELECTION PROCEDURE TO MAXIMISE SCALE RELIABILITY AND VALIDITY

By Jacques Eugene Raubenheimer. 2004

734 citations recorded by the source corpus.

In industrial- and social-psychological research, the variables of interest are often measured by means of Likert-type questionnaires or scales. The internal validity of the conclusions reached in such research directly depends on the reliability (e.g., internal consistency) and the validity of the questionnaires or scales used. Typically, item-analytic procedures have been used to arrive at sets of internally consistent items and subsequently the validity of these scales was investigated by correlating the total scores on them with criteria of interest. In the case of multi-dimensional scales, both the convergent validity of the respective subscales (i.e., the degree to which the items within a particular subscale measure the same uni-dimensional construct), and their discriminant validity (i.e., the degree to which the items in different subscales measure different rather than the same construct) need to be considered. The analyses to investigate internal consistency, convergent validity and discriminant validity cannot proceed in just any order as the analysis of some of these properties presupposes that particular results have been obtained for the other. For example, in the case of multi-dimensional scales it makes little sense to investigate the internal consistency of the total scale by means of Cronbach’s alpha, as this index assumes uni-dimensionality. Green, Lizzits and Mulaik (1977) have shown that items showing

Subfields: Health, Social Psychology

View Paper: https://www.semanticscholar.org/paper/197fa9ad3b9841126a518662358c1a86e952e251

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In Health

1. J. Dandy
2. S. Rundle‐Thiele
3. Alfred Allan
4. Ken Robinson
5. R. Becerra
6. Yu-Ting Huang
7. D. Preece

In Social Psychology

1. J. Dandy
2. S. Rundle‐Thiele
3. Alfred Allan
4. Ken Robinson
5. R. Becerra
6. Yu-Ting Huang
7. D. Preece

Citations in the corpus

• The moderating effect of cultural congruence on the internal marketing practice and employee satisfaction relationship: An empirical examination of Australian and Taiwanese born tourism employees (2014, background): “Construct validity refers to the ability of a measure to provide empirical evidence consistent with a theory base on the concepts of related hypotheses (Hinkin, 1995; Raubenheimer, 2004).”
• The psychometric assessment of alexithymia: Development and validation of the Perth Alexithymia Questionnaire (2018, methodology): “, Gorsuch, 1983; Kline, 1979), and we had 231 participants, in our preliminary analyses we analysed smaller clusters of items rather than analysing all 66 items together (Gerbing & Anderson, 1988; Raubenheimer, 2004).”
• Sexualizing the Self (2014, background): “Following the guideline that a factor should have a minimum of 3–4 items (Raubenheimer, 2004), this factor was dropped.”