Intersubtest Discrepancies on the RBANS: Results from the OKLAHOMA Study

Abstract

The present study provides supplemental data for the Repeatable Battery for the Assessment of Neuropsychological Status (Randolph, 1998) by reporting base rate data on discrepancies between subtests of this measure. These discrepancies are organized by general level of ability and include both age and education corrections. The data come from the Oklahoma Longitudinal Assessment of Health Outcomes in Mature Adults study and include cognitive performances of 718 community-dwelling older adults. These findings offer the possibility of increased sensitivity at detecting clinically significant differences that might not be identified when relying on base rate data from a greater age range. Similarly, these data highlight the mediating effects of the global level of cognitive functioning on discrepancy scores.

Key words:

• discrepancy scores
• elderly
• RBANS
• subtests

Notes

Note. Values represent frequencies unless otherwise specified. Age is in years. Medical conditions = percentage of sample reporting that condition.

Note. Index and subtest scores are age- or age and education-corrected scores based on the OKLAHOMA normative studies (n = 718). Data are from “Age- and education-corrected independent normative data for the RBANS in a community-dwelling elderly sample,” by K. Duff, D. Patton, M. R. Schoenberg, J. Mold, J. G. Scott, & R. L. Adams, 2003, The Clinical Psychologist, 17, pp. 351–366.

Note. Subtest discrepancy scores are based on age- or age and education-corrected scores based on the OKLAHOMA normative studies (Duff et al., 2003). In determining which table to use, calculate the age-corrected Total Scale score based on Duff et al. (2003) normative data. For scores <90, use Table 3; for scores from 90 to 109, use Table 4; and for scores ≥110, use Table 5. OKLAHOMA normative studies data from “Age- and education-corrected independent normative data for the RBANS in a community-dwelling elderly sample,” by K. Duff, D. Patton, M. R. Schoenberg, J. Mold, J. G. Scott, & R. L. Adams, 2003, The Clinical Psychologist, 17, pp. 351–366.

Note. Subtest discrepancy scores are based on age- or age and education-corrected scores based on the OKLAHOMA normative studies (Duff et al., 2003). In determining which table to use, calculate the age-corrected Total Scale score based on Duff et al. (2003) normative data. For scores <90, use Table 3; for scores from 90 to 109, use Table 4; and for scores ≥110, use Table 5. OKLAHOMA normative studies data from “Age- and education-corrected independent normative data for the RBANS in a community-dwelling elderly sample,” by K. Duff, D. Patton, M. R. Schoenberg, J. Mold, J. G. Scott, & R. L. Adams, 2003, The Clinical Psychologist, 17, pp. 351–366.

Note. Subtest discrepancy scores are based on age- or age and education-corrected scores based on the OKLAHOMA normative studies (Duff et al., 2003). In determining which table to use, calculate the age-corrected Total Scale score based on Duff et al. (2003) normative data. For scores <90, use Table 3; for scores from 90 to 109, use Table 4; and for scores ≥110, use Table 5. OKLAHOMA normative studies data from “Age- and education-corrected independent normative data for the RBANS in a community-dwelling elderly sample,” by K. Duff, D. Patton, M. R. Schoenberg, J. Mold, J. G. Scott, & R. L. Adams, 2003, The Clinical Psychologist, 17, pp. 351–366.

Note. Index and subtest scores are age-corrected scores based on the OKLAHOMA normative studies (Duff et al., 2003). Discrepancy scores represent differences between age-corrected scale scores. Numbers in parentheses are relative standing of that discrepancy score in the cumulative distribution of individuals with that Total Scale score. OKLAHOMA normative studies data from “Age- and education-corrected independent normative data for the RBANS in a community-dwelling elderly sample,” by K. Duff, D. Patton, M. R. Schoenberg, J. Mold, J. G. Scott, & R. L. Adams, 2003, The Clinical Psychologist, 17, pp. 351–366.