The statements in this scale were first published by Rosander and Thurstone (1931) and were reprinted by Shaw and Wright (1967). Beside each statement is the Thurstone scale value published with the original scale, followed by the new Thurstone scale value and associated standard deviation calculated by Roberts (1995). The new scale values were developed using a variant of the successive intervals procedure which allowed scale value standard deviations to differ across items (Torgerson, 1958). Scale values were based on favorability judgments from 76 college students who rated each statement on a 9-point scale. The endpoints of the rating scale were anchored with the terms "very unfavorable" and "very favorable", respectively. Five of the original items could not be adequately scaled due to their ambiguity or their failure to fit the Thurstone model.
In addition to scaling statements, Roberts (1995) had 223 subjects indicate the extent to which they agreed with each of the 20 statements. Responses were on a 6-point rating scale where 1=Strongly Disagree, 2=Disagree, 3=Slightly Disagree, 4=Slightly Agree, 5=Agree and 6=Strongly Agree. The data are formatted as follows:
| Field | Columns |
| Subject ID | 1-4 |
| Item 1 | 6 |
| Item 2 | 7 |
| Item 3 | 8 |
| . | . |
| . | . |
| . | . |
| Item 20 | 25 |
Further information about the scale values and the graded disagree-agree data can be found in Roberts (1995).
Roberts, J. S. (1995). Item response theory approaches to attitude measurement. (Doctoral dissertation, University of South Carolina, Columbia, 1995). Dissertation Abstracts International, 56, 7089B.
Rosander, AC. and Thurstone, L. L. (1931). Scale of attitute toward censorship: Scale No. 28. In Thurstone, L. L. (ed.), The measurement of social attitudes. Chicago, IL: University of Chicago Press.
Shaw, M. E., & Wright, J. M. (1967). Scales for the measurement of attitudes. NY: McGraw-Hill.
Torgerson, W. S. (1958). Theory and methods of scaling. NY: Wiley.