The Swaziland Behavioural Assessment Series (SBAS) is a battery of ability tests derived from the Flanagan Aptitude Classification Tests and the Internationally Developed Tests, for use in the guidance of secondary school students towards relevant educational and vocational opportunities. The SBAS has been field tested in Swaziland. Sixteen English-language samples illustrate tests of the following skills: identifying clerical errors; alphabetical filing; reading and obtaining tabular data; learning associated pairs; verbal reasoning with word analogies; reading comprehension; planning tasks in an organized sequence; computation; understanding and using mathematical formulas; using graphic data; visualizing three dimensions; responding to changing perceptual cues; applying mechanical principles; tracing large and small designs; and recognizing basic scientific facts. Instructions for administration and discussion of the instrument are not included in this document. (Author/GDC)