Table 4.
Description of Data Sources for Study 2
| Sample | Description | Measures available | Sample size | Mage (SD) | % Female | Source |
|---|---|---|---|---|---|---|
|
| ||||||
| Samples 1–27 | A combination of 27 convenience and representative samples from a validation project for the NARQ- S. | NARQ-S; NPI | 15,832 | 33.13 (16.27) | 63.7% | Leckelt et al., 2019 |
| Sample 28 | A large internet sample validating a single-item measure of narcissism | SINS | 139,748 | 42.53 (13.99) | 54.0% | not published |
| Sample 29 | Internet sample for validating the B-PNI | NPI, NARQ, B-PNI | 3,794 | 35.09 (13.39) | 72.0% | Wetzel et al., 2021 |
| Sample 30 | Internet sample | NPI | 2,200 | 25.99 (9.14) | 74.5% | Foster, Campbell, & Twenge, 2003 |
| Sample 31 | MTurk | NPI | 3,078 | 32.46 (11.86) | 56.1% | Leckelt, Back, Foster, Hutteman, et al., 2016 |
| Sample 32 | MTurk | NPI, PES, HSNS | 2,647 | 32.57 (1157) | 65.4% | Leckelt, Back, Foster, Hutteman, et al., 2016 |
| Sample 33 | Online internet sample | NPI | 1,572 | 41.42 (1113) | 42.3% | Bianchi et al., 2014 |
| Sample 34 | MTurk | NPI | 1,113 | 32.94 (9.93) | 45.6% | not published |
| Sample 35 | Internet sample available from openpsychometrics.org | NPI | 10,579 | 34.97 (13.46) | 42.4% | not published |
| Sample 36 | 2013 wave of the New Zealand Attitudes and Values Survey | PES | 18,261 | 45.75 (14.67) | 63.1% | New Zealand Attitudes and Values Study (Stronge, Milojev, & Sibley, 2018) |
| Sample 37 | Internet sample available from openpsychometrics.org | HSNS, DDN | 32,277 | 29.19 (11.34) | 38.2% | not published |
| Sample 38 | Undergraduate subject pool | B-PNI | 899 | 19.75 (166) | 69.6% | not published |
| Sample 39 | Undergraduate subject pool | B-PNI | 545 | 19.44 (131) | 72.2% | Hopwood et al., 2011 |
| Sample 40 | The National Epidemiologic Survey of Alcohol and Related Conditions (wave 2) | DSM-IV NPD | 34,653 | 49.06 (17.30) | 57.97% | Bianchi et al., 2014 |
| Sample 41 | Community/clinical sample from the Western New York area | B-PNI | 249 | 27.85 (6.27) | 55.0% | Edershile et al., 2018 |
| Sample 42 | Community/clinical sample from the Pittsburgh area | B-PNI | 311 | 42.61 (12.79) | 63.0% | not published |