Guidelines for the construction and use of an attitude instrument are presented, and the application of the instrument to measure student attitude toward economics is described. Attention is directed to the Likert-like summated forced-choice variety of attitude instrument, whereby attitude toward the object is inferred from the summed responses to statements referencing the object. The first phase is scale construction, followed by testing the instrument for consistency and reliability. About 40 to 50 statements that directly address the object need to be developed, with attention to the style and structure of the sentence. The most common number of response categories is five, and each response label is weighted by its response number. Initially, the instrument is administered to a sample of responders from the target population. The mean and standard deviation for each statement are tabulated to determine the worth of the statement. After administering the instrument to the full target group, test reliability is determined. Results of three reliability tests for the sample instrument on attitudes toward economics are presented. The full target group for the instrument reliability assessment was a large class of freshman macroeconomics students at Illinois State University during the fall of 1978. The one-page instrument is appended. (SW)