engleski

Normative and ipsative scoring in emotion research

Personality assessment, especially important in clinical and occupational settings, can be infl uenced by factors that are not related to specifi c item content or to the attribute the instrument is designed to measure. Such factors are diff erent forms of response distortions (e.g. extreme response style, acquiescence, “ yeasaying” or “ naysaying” ) that can contaminate the results. One way to eliminate such contamination is the transformation of normative data to ipsative data. Ipsative scores have been widely criticized because of their specifi c psychometric properties that make factor analysis, calculation of reliability and conventional statistics on this form of data uninterpretable (e.g. Johnson, Wood, & Blinkhorn, 1998). More recently published papers concluded the opposite (e.g. Pickworth, & Schoeman, 2000). Th e present study was meant as a contribution to this controversial area. Th e results of factor analyses performed on normative data were compared with those obtained on ipsatized data. Ipsatization procedure was defi ned as subtraction of the individual mean score from all scores for each individual. For this purpose an instrument measuring positive and negative aff ect was administered to 240 psychology students at the University of Zagreb. Th e advantages and limitations of ipsative versus normative data specifi cally in the fi eld of emotion research will be discussed.

mjerenje; emocije; bodovanje

nije evidentirano