Skip to main content

Data-driven studies in Face Identity Processing rely on the quality of the tests and data sets.

Bobak, A. K., Jones, A. L., Hilker, Z., Mestry, N., Bate, S. and Hancock, P. J. B., 2023. Data-driven studies in Face Identity Processing rely on the quality of the tests and data sets. Cortex, 166, 348-364.

Full text available as:

1-s2.0-S0010945223001557-main.pdf - Published Version
Available under License Creative Commons Attribution.

[img] PDF
accepted version_ID_Bobak Jones et al_revised_v2.pdf - Accepted Version
Restricted to Repository staff only
Available under License Creative Commons Attribution Non-commercial No Derivatives.


DOI: 10.1016/j.cortex.2023.05.018


There is growing interest in how data-driven approaches can help understand individual differences in face identity processing (FIP). However, researchers employ various FIP tests interchangeably, and it is unclear whether these tests 1) measure the same underlying ability/ies and processes (e.g., confirmation of identity match or elimination of identity match) 2) are reliable, 3) provide consistent performance for individuals across tests online and in laboratory. Together these factors would influence the outcomes of data-driven analyses. Here, we asked 211 participants to perform eight tests frequently reported in the literature. We used Principal Component Analysis and Agglomerative Clustering to determine factors underpinning performance. Importantly, we examined the reliability of these tests, relationships between them, and quantified participant consistency across tests. Our findings show that participants’ performance can be split into two factors (called here confirmation and elimination of an identity match) and that participants cluster according to whether they are strong on one of the factors or equally on both. We found that the reliability of these tests is at best moderate, the correlations between them are weak, and that the consistency in participant performance across tests and is low. Developing reliable and valid measures of FIP and consistently scrutinising existing ones will be key for drawing meaningful conclusions from data-driven studies.

Item Type:Article
Uncontrolled Keywords:Face identity processing (FIP); face perception; face memory; individual differences; principal component analysis; agglomerative clustering
Group:Faculty of Science & Technology
ID Code:38645
Deposited By: Symplectic RT2
Deposited On:05 Jun 2023 09:45
Last Modified:24 May 2024 10:37


Downloads per month over past year

More statistics for this item...
Repository Staff Only -