MAQ Differences on APA and TLE Scores between Impaired and Likely Intact Miranda Abilities
| Miranda Abilities | MAQ (n for Impaired, Likely Intact) | Impaired | Likely Intact | F | P | d |
|---|---|---|---|---|---|---|
| Miranda Vocabulary Scale | APA (43, 264) | 4.51 (1.45) | 5.16 (0.87) | 16.57 | < .001 | .67 |
| TLE (42, 266) | 4.14 (1.63) | 5.29 (1.00) | 39.04 | < .001 | 1.04 | |
| Miranda Comprehension Template | APA (18, 145) | 4.61 (1.24) | 5.05 (0.97) | 3.02 | .08 | .43 |
| TLE (18, 148) | 3.56 (1.82) | 5.06 (1.27) | 20.22 | < .001 | 1.12 | |
| Miranda Quiz Primary Total | APA (71, 102) | 4.82 (1.20) | 5.15 (0.94) | 2.77 | .07 | .26 |
| TLE (72, 99) | 4.51 (1.47) | 5.22 (1.06) | 9.13 | < .001 | .47 | |
| MRM-Waive | APA (100, 279) | 4.85 (1.04) | 5.24 (0.85) | 10.41 | < .001 | .38 |
| TLE (102, 275) | 4.86 (1.26) | 5.24 (1.08) | 8.71 | < .001 | .34 | |
| MRM-Exercise | APA (47, 266) | 4.55 (1.16) | 5.23 (0.89) | 11.64 | < .001 | .54 |
| TLE (49, 263) | 4.53 (1.43) | 5.26 (1.00) | 10.37 | < .001 | .50 |
Differences for the impaired and likely intact groups are presented as mean (SD). The Miranda Vocabulary Scale compared failed (≥ 50% of items scored 0 or 1) versus likely adequate (≤ 20% of items scored 0 or 1, plus average item score ≥ 3). In addition, the Miranda Comprehension Template was operationalized as failed (< 50%) versus likely adequate (≥ 70%) comprehension. For the Miranda Quiz Primary Total, tertiles were used with failed being set at Miranda Quiz < 11 (i.e., ≥ 26.7% of Miranda misconceptions) and likely adequate at Miranda Quiz > 12 (i.e., ≤ 20.0% of Miranda misconceptions). To facilitate interpretation, statistically significant differences and medium to large effect sizes are in bold.
APA, adversarial perspective on arrest; MAQ, Miranda Acquiescence Questionnaire; MRM, Miranda Reasoning Measure; TLE, trusting law enforcement.