SYMPTOM-POSITIVE AND SYMPTOM-NEGATIVE ITEMS IN THE STATE-TRAIT ANXIETY INVENTORY - A COMPARISON AND REPLICATION

Substantially higher mean scores on symptom-negatively versus symptom-positively worded items have consistently been reported in the literature for the balanced Stait-Trait Anxiety Inventory. In this study we aimed at replicating and comparing these findings for the Dutch adaptation of the inventory. Results indicated significantly higher mean subscale scores for symptom-negative as opposed to symptom-positive items of both the Trait and State version, across sexes and age groups as well as across different levels of distress in students, policemen and psychiatric out-patients. Positive-negative mean difference scores were consistently larger for the State than for the Trait version. State and Trait mean difference scores were found to be mainly confined to symptom-positive subscales. Scale intercorrelations were lowest between symptom-positive and symptom-negative subscales both within and across measures. Factor analyzing the combined versions identified separate symptom-negative and symptom-positive factors, tentatively labeled "absence of positive affect" and "presence of negative affect". Several explanations of the findings among which item-intensity specificity, the response style of social desirability and the model of positive and negative affectivity are discussed.