The design of an instrument to measure change in attitudes of white and black children. A curriculum was developed to promote positive relations between white and black children. To measure the effect of the curriculum an instrument was needed to measure change (pre-and posttest) in attitudes. This article describes how the instrument was designed. By means of a literature study existing scales were identified which measure the attitudes of children towards others of different race and ethnic groups. An evaluation of these scales showed that they could not be used un-changed with children in South Africa. Some could serve as examples of the types of scales which could be included in an attitude instrument. An attitude instrument was designed which consists of a biographical questionnaire, two semantic differential scales, an opinion questionnaire and a social distance scale. The instrument was designed to measure whether any shift occurred in ethnic attitude, prejudice and behavioural intentions as a result of a specific intervention. Content validity of the instrument is based on the fact that the scales and items provide for a continuum of relevant attitudes and that certain procedures were followed to ensure that Std. 7 pupils understood the items. The instrument was used with a sample of respondents (n = 150) from different schools in the Eastern Cape. Results correlated positively with other relevant variables which indicated construct validity. Cronbach's alpha internal consistency reliability coefficient was calculated and the values obtained indicate consistency of the instrument.'n Kurrikulum is ontwikkel om houdings tussen wit en swart kinders positief te verander. am die effek van die kurrikulum te bepaal word 'n instrument benodig wat verandering (voor-en natoets) in houdings meet. Hierdie artikel beskryf hoe sodanige instrument ontwerp is. Houdingskale wat plaaslik en in die buiteland beskikbaar is om houdings tussen kinders van verskillende rasse-of etniese groepe te meet, is deur 'n Iiteratuurstudie identifiseer. 'n Evaiuering van hierdie skale het getoon dat die skale nie onveranderd met kinders in Suid-Afrika gebruik kan word nie. Sommige kon wei as voorbeeld dien van die tipe skale wat in 'n houdingsinstrument opgeneem kan word. 'n Houdingsinstrument is ontwerp wat bestaan uit'n biografiese vraelys, twee semantiese differensiaalskale, 'n meningsvraelys en 'n sosiale afstandskaal. Die instrument is ontwerp om te meet of enige verskuiwing in etniese houding, vooroordeel en gedrags-intensies as gevoig van 'n bepaalde intervensie plaasgevind het. Inhoudsgeldigheid van die instrument berus daarop dat die skale en items ontwerp is om die houdingskontinuum wat ter sprake is, te dek en dat sekere prosedures gevolg is om te verseker dat standerd sewe leerlinge die items verstaan. Die instrument is op 'n steekproef van respondente van verskillende skole in Oos-Kaapland toegepas (n =150). Resultate het positief met ander geldige veranderlikes gekorreleer wat op konstrukgeldigheid dui. Cronbach se alfa int...