25 personality self report items taken from the International Personality Item Pool (ipip.ori.org) were included as part of the Synthetic Aperture Personality Assessment (SAPA) web based personality assessment project. The data from 2800 subjects are included here as a demonstration set for scale construction, factor analysis, and Item Response Theory analysis. Three additional demographic variables (sex, education, and age) are also included.
Source
The items are from the ipip (Goldberg, 1999). The data are from the SAPA project (Revelle, Wilt and Rosenthal, 2010) , collected Spring, 2010 ( https://www.sapa-project.org/).
Details
Unlike the psych::bfi data set, our data set in this package
retains only complete cases of all variables.
Note
The bfi data set and items should not be confused with the BFI (Big Five Inventory) of Oliver John and colleagues (John, O. P., Donahue, E. M., & Kentle, R. L. (1991). The Big Five Inventory–Versions 4a and 54. Berkeley, CA: University of California,Berkeley, Institute of Personality and Social Research.)
References
Goldberg, L.R. (1999) A broad-bandwidth, public domain, personality inventory measuring the lower-level facets of several five-factor models. In Mervielde, I. and Deary, I. and De Fruyt, F. and Ostendorf, F. (eds) Personality psychology in Europe. 7. Tilburg University Press. Tilburg, The Netherlands.
Revelle, W., Wilt, J., and Rosenthal, A. (2010) Individual Differences in Cognition: New Methods for examining the Personality-Cognition Link In Gruszka, A. and Matthews, G. and Szymura, B. (Eds.) Handbook of Individual Differences in Cognition: Attention, Memory and Executive Control, Springer.
Revelle, W, Condon, D.M., Wilt, J., French, J.A., Brown, A., and Elleman, L.G. (2016) Web and phone based data collection using planned missing designs. In Fielding, N.G., Lee, R.M. and Blank, G. (Eds). SAGE Handbook of Online Research Methods (2nd Ed), Sage Publcations.
Examples
library(tidyverse)
glimpse(bfi)
#> Rows: 2,236
#> Columns: 28
#> $ A1 <ord> 6, 4, 4, 4, 1, 2, 4, 1, 2, 2, 4, 2, 1, 5, 1, 1, 1, 1, 1, 5, …
#> $ A2 <ord> 6, 3, 4, 5, 5, 6, 5, 6, 4, 5, 5, 5, 5, 3, 6, 4, 5, 5, 5, 6, …
#> $ A3 <ord> 5, 1, 5, 2, 6, 5, 5, 6, 4, 1, 6, 6, 6, 5, 4, 4, 4, 5, 4, 4, …
#> $ A4 <ord> 6, 5, 6, 2, 5, 6, 6, 1, 4, 3, 5, 6, 5, 4, 6, 2, 3, 6, 4, 3, …
#> $ A5 <ord> 5, 1, 5, 1, 6, 5, 5, 6, 3, 5, 5, 6, 4, 2, 4, 3, 5, 5, 5, 5, …
#> $ C1 <ord> 6, 3, 4, 5, 4, 3, 5, 5, 6, 5, 5, 5, 1, 2, 5, 6, 6, 4, 4, 5, …
#> $ C2 <ord> 6, 2, 3, 5, 3, 5, 5, 2, 5, 4, 5, 5, 5, 2, 6, 5, 5, 4, 5, 3, …
#> $ C3 <ord> 6, 4, 5, 5, 2, 6, 4, 5, 6, 5, 3, 5, 6, 4, 3, 6, 5, 4, 4, 3, …
#> $ C4 <ord> 1, 2, 3, 2, 4, 3, 1, 1, 1, 2, 5, 2, 4, 3, 1, 3, 2, 3, 3, 4, …
#> $ C5 <ord> 3, 4, 2, 2, 5, 6, 1, 1, 1, 5, 4, 4, 6, 4, 5, 4, 2, 4, 3, 5, …
#> $ E1 <ord> 2, 3, 1, 3, 2, 2, 3, 1, 2, 1, 1, 1, 6, 3, 6, 3, 3, 4, 3, 6, …
#> $ E2 <ord> 1, 6, 3, 4, 1, 2, 2, 1, 4, 2, 2, 2, 6, 4, 6, 4, 2, 3, 3, 4, …
#> $ E3 <ord> 6, 4, 2, 3, 2, 4, 5, 6, 4, 6, 6, 4, 2, 3, 3, 3, 3, 4, 2, 4, …
#> $ E4 <ord> 5, 2, 5, 6, 5, 6, 5, 6, 2, 5, 5, 5, 1, 2, 2, 3, 6, 4, 5, 4, …
#> $ E5 <ord> 6, 1, 4, 5, 2, 6, 6, 6, 6, 4, 5, 5, 1, 3, 2, 5, 5, 4, 4, 3, …
#> $ N1 <ord> 3, 6, 3, 2, 2, 4, 2, 2, 3, 1, 5, 3, 1, 5, 2, 5, 1, 2, 2, 2, …
#> $ N2 <ord> 5, 3, 3, 4, 2, 4, 3, 3, 3, 4, 4, 2, 2, 3, 2, 6, 2, 2, 3, 2, …
#> $ N3 <ord> 2, 2, 4, 2, 2, 4, 3, 1, 5, 2, 4, 4, 1, 4, 2, 5, 1, 3, 1, 3, …
#> $ N4 <ord> 2, 6, 2, 2, 2, 6, 1, 2, 3, 2, 3, 1, 3, 4, 4, 5, 2, 3, 3, 4, …
#> $ N5 <ord> 3, 4, 3, 3, 2, 6, 1, 1, 2, 5, 1, 2, 6, 3, 1, 4, 1, 3, 2, 5, …
#> $ O1 <ord> 4, 3, 5, 5, 6, 6, 6, 6, 5, 2, 4, 5, 6, 4, 5, 5, 5, 4, 4, 3, …
#> $ O2 <ord> 3, 2, 3, 2, 1, 1, 2, 4, 2, 4, 4, 2, 6, 5, 5, 5, 1, 3, 3, 5, …
#> $ O3 <ord> 5, 4, 5, 5, 5, 5, 5, 5, 6, 5, 6, 5, 5, 4, 4, 4, 6, 2, 5, 4, …
#> $ O4 <ord> 6, 5, 6, 5, 5, 6, 6, 5, 6, 4, 5, 5, 6, 4, 5, 5, 6, 5, 4, 4, …
#> $ O5 <ord> 1, 3, 3, 5, 2, 1, 2, 3, 1, 1, 1, 2, 1, 3, 3, 2, 1, 2, 3, 4, …
#> $ gender <int> 2, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 1, 1, …
#> $ education <int> 3, 2, 1, 1, 5, 2, 1, 3, 5, 3, 3, 3, 5, 3, 3, 3, 5, 3, 1, 4, …
#> $ age <int> 21, 19, 21, 17, 68, 27, 18, 20, 51, 33, 18, 41, 23, 23, 20, …