Table 5. PILS selected traits and cognitive abilities.
Descriptives.
| Self | Informantsa | |||||
|---|---|---|---|---|---|---|
| M | SD | α | M | SD | α | |
| Age | 23.80 | 3.92 | 25.85 | 7.84 | ||
| Gender | 171 ♀ | 139 ♂ | 404 ♀ | 288 ♂ | ||
| Big Five | ||||||
| Neuroticism | 4.31 | 1.34 | .76 | 3.83 | 1.14 | .80 |
| Extraversion | 4.79 | 1.24 | .81 | 5.27 | 1.10 | .84 |
| Openness | 4.98 | 1.11 | .63 | 5.12 | 0.91 | .67 |
| Agreeableness | 4.82 | 0.90 | .63 | 5.09 | 0.85 | .77 |
| Conscientiousness | 4.78 | 1.04 | .63 | 5.36 | 0.94 | .79 |
| Self-esteem and self-concept | ||||||
| RSES | 3.10 | 0.55 | .88 | 3.22 | 0.37 | .86 |
| SAQ | 6.39 | 0.92 | .69 | 6.97 | 0.71 | .69 |
| Narcissism and dark triad | ||||||
| NPIb | 14.33 | 6.03 | .80 | 5.46 | 2.69 | .80 |
| NARQ-Admiration | 3.17 | 0.78 | .82 | 3.87 | 0.54 | .75 |
| NARQ-Rivalry | 2.33 | 0.74 | .78 | 2.06 | 0.65 | .87 |
| DIDO-Machiavellianism | 3.40 | 1.64 | .77 | 2.66 | 1.25 | .82 |
| DIDO-Psychopathy | 3.17 | 1.48 | .60 | 2.86 | 1.24 | .74 |
| DIDO-Narcissism | 4.26 | 1.70 | .77 | 3.60 | 1.40 | .82 |
| Cognitive abilities | ||||||
| WMC — solved equations | 51.17 | 5.93 | .70 | |||
| WMC — memory span | 5.19 | 2.27 | .71 | |||
| MWTB | 29.74 | 2.78 | .63 | |||
| Short Raven | 8.14 | 3.09 | .71 | |||
Note. Ns range from 297 to 311. M = mean, SD = standard deviation, α = Cronbach’s alpha. RSES = Rosenberg Self-Esteem Scale, SAQ = Self-Attributes Questionnaire, NPI = Narcissistic Personality Inventory, NARQ = Narcissistic Admiration and Rivalry Questionnaire, DIDI = Dirty Dozen, WMC = Working memory capacity, MWTB = Vocabulary Knowledge Test [Mehrfachwahl-Wortschatz-Test]. Scales: Big Five 1 to 7, RSES 1 to 4, SAQ 1 to 10, NPI 0 to 40, NARQ 1 to 6, DIDO 1 to 9, WMC — solved equations 0 to 60, WMC — memory span 0 to 8, MWTB 0 to 36, Short Raven 0 to 15.
aInformant-results for M and SD refer to the mean informant-report per person. For alpha results, informant-ratings were aggregated before calculation.
bA short version (15 items, range 0 to 15) of the NPI was used for the informant-report.