Table 3. Mean, Standard Deviation, and Range of Verbal Memory Variables According to Group and Gender.
Ecstasy Users (N = 48) | Marijuana Users (N = 17) | (E-MJ) z-score difference) | ||||||||||||
Males (N = 26) | Females (N = 22) | Males (N = 8) | Females (N = 9) | |||||||||||
CVLT-2 Variable | M | SD | Range | M | SD | Range | M | SD | Range | M | SD | Range | Men | Women |
Trial 1 | −.48 | .90 | 3.00–1.50 | −.40 | 1.29 | −1.50–1.00 | .25 | 1.31 | −1.00–2.50 | .25 | 1.31 | −1.00–2.50 | −.73 | −.65 |
Trial B | −.94 | .95 | −3.00–.50 | −.60 | .22 | −1.00–−.50 | –1.00 | .96 | –3.00−0 | −1.00 | .96 | −1.00–2.50 | .06 | .40 |
SDFR | −.40 | 1.05 | −2.00–1.50 | −.20 | .84 | −1.50–.50 | 0 | .54 | −.50–1.00 | 0 | .53 | −3.00–0 | −.40 | −.20 |
SDCR | −.52 | .92 | −2.50–1.00 | −.50 | 1.23 | −2.00–1.00 | .19 | .70 | −1.00–1.00 | .19 | .70 | −.50–1.00 | −.72 | −.69 |
LDFR | −.67 | 1.15 | −3.00–1.00 | −.60 | 1.08 | −2.00–.50 | .19 | .84 | −1.00–1.00 | .19 | .84 | −1.00–1.00 | −.86 | −.79 |
LDCR | −.69 | 1.05 | −3.00–1.00 | −.60 | 1.34 | −2.50–.50 | .13 | .84 | −1.00–1.00 | .13 | .84 | −1.00–1.00 | −.82 | −.73 |
LDFR vs. SDFR | −.27 | .87 | −2.50–2.00 | −.40 | .42 | −1.00–0 | .19 | .53 | −.50–1.00 | .19 | .53 | −.50–1.00 | −.46 | −.59 |
Recall Disc. | −.50 | .88 | −2.00–1.50 | −.50 | .71 | −1.50–0 | .25 | 1.20 | −1.50–2.00 | .25 | 1.20 | −1.50–2.00 | −.75 | −.75 |
Recog. | −.50 | .91 | −2.50–1.00 | −.10 | .55 | −1.00–.50 | −.06 | .68 | −1.00–1.00 | −.06 | .68 | −1.00–1.00 | −.44 | −.04 |
Z-scores are reported except retention (positive scores indicate poorer retention). (E-MJ) indicates the difference in mean scores between the ecstasy (E) and MJ users for all components of verbal memory except retention. Abbreviations: SDFR = Short Delay Free Recall, SDCR = Short Delay Cued Recall, LDFR = Long Delay Free Recall, LDCR = Long Delay Cued Recall, LDFR vs. SDFR = Long Delay Free Recall vs. Short Delay Free Recall, Recall Disc. = Recall discriminability, Recog. = Total recognition.