RELIABILITY OF A KNOWLEDGE OF AIDS SCALE - A REPLICATION

Zimer's knowledge of AIDS scale was completed anonymously by 2,209 uni versity students to assess whether a split-half approach in which item s in each half were matched for content would provide better estimates of reliability than other methods. Analysis indicated that the odd-ev en Spearman-Brown split-half reliability coefficient was lower than bo th the alpha coefficient and the content-based split-half coefficient. The Cronbach alpha was similar to the content-based Spearman-Brown re liability coefficient.