This dataset includes 25 self-report personality items sourced from the International Personality Item Pool (ipip.ori.org) as part of the Synthetic Aperture Personality Assessment (SAPA) web-based personality assessment project. The dataset contains responses from 2,800 examinees. Additionally, three demographic variables (sex, education, and age) are included.
A data frame with 2,800 observations on 28 variables. The variables include:
A1 - Am indifferent to the feelings of others. (q_146)
A2 - Inquire about others’ well-being. (q_1162)
A3 - Know how to comfort others. (g_1206)
A4 - Love children. (g_1364)
A5 - Make people feel at ease. (q_1419)
C1 - Am exacting in my work. (q_124)
C2 - Continue until everything is perfect. (q_530)
C3 - Do things according to a plan. (q_619)
C4 - Do things in a half-way manner. (g_626)
C5 - Waste my time. (g_1949)
E1 - Don't talk a lot. (q_712)
E2 - Find it difficult to approach others. (q_901)
E3 - Know how to captivate people. (q_1205)
E4 - Make friends easily. (q_1410)
E5 - Take charge. (g_1768)
N1 - Get angry easily. (q_952)
N2 - Get irritated easily. (q_974)
N3 - Have frequent mood swings. (q_1099)
N4 - Often feel blue. (g_1479)
N5 - Panic easily. (q_1505)
O1 - Am full of ideas. (q_128)
O2 - Avoid difficult reading material. (g_316)
O3 - Carry the conversation to a higher level. (q_492)
O4 - Spend time reflecting on things. (g_1738)
O5 - Will not probe deeply into a subject. (q_1964)
gender - Gender: Males = 1, Females = 2
education - Education level: 1 = High School, 2 = Finished High School,
3 = Some College, 4 = College Graduate, 5 = Graduate Degree
age - Age in years
The 25 items are organized by five factors: Agreeableness, Conscientiousness, Extraversion,
Neuroticism, and Openness. The scoring key is created using make.keys, and scores are
calculated using score.items. These factors are useful for IRT-based latent factor analysis
of the polychoric correlation matrix. Endorsement plots and item information functions reveal
variations in item quality. Responses were collected on a 6-point scale:
1 = Very Inaccurate, 2 = Moderately Inaccurate, 3 = Slightly Inaccurate, 4 = Slightly Accurate,
5 = Moderately Accurate, 6 = Very Accurate, as part of the Synthetic Aperture Personality Assessment (SAPA)
project (https://www.sapa-project.org/). For examples of data collection techniques, visit
https://www.sapa-project.org/ or the International Cognitive Ability Resource at
https://icar-project.org. The items were sampled from the International Personality Item Pool of
Lewis Goldberg using SAPA sampling techniques. This dataset is a sample from the larger SAPA data bank.
Goldberg, L.R. (1999). A broad-bandwidth, public domain, personality inventory measuring the lower-level facets of several five-factor models. In Mervielde, I., Deary, I., De Fruyt, F., & Ostendorf, F. (Eds.), Personality psychology in Europe (Vol. 7, pp. 7-28). Tilburg University Press.
Revelle, W., Wilt, J., & Rosenthal, A. (2010). Individual Differences in Cognition: New Methods for Examining the Personality-Cognition Link. In Gruszka, A., Matthews, G., & Szymura, B. (Eds.), Handbook of Individual Differences in Cognition: Attention, Memory and Executive Control (pp. 117-144). Springer.
Revelle, W., Condon, D., Wilt, J., French, J.A., Brown, A., & Elleman, L.G. (2016). Web and phone-based data collection using planned missing designs. In Fielding, N.G., Lee, R.M., & Blank, G. (Eds.), SAGE Handbook of Online Research Methods (2nd ed., pp. 100-116). Sage Publications.