Fingerprint
Dive into the research topics where Jules Ellis is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
- 1 Similar Profiles
Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
-
An Overall Test of Pairwise Mean Conditional Covariances in IRT
Ellis, J. L., van der Ark, L. A. & Sijtsma, K., Mar 2025, In: Psychometrika. 90, 1, p. 384-414 31 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access -
Should Social Robots for Elderly Care Resemble Cute Animals? Findings from a Pilot Survey Study
Leontjevas, R., Reniers, P. W. A., Declercq, I., Enders - Slegers, M. J., Ellis, J. L. & Hediger, K., 24 Aug 2025, Well-being for all: Innovations and insights in human-animal interactions. 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference Abstract/Poster in proceeding › peer-review
Open AccessFile10 Downloads (Pure) -
Meten in de psychologie: uitdagingen voor theorievorming
Ellis, J. L., 8 Nov 2024, Open Universiteit.Research output: Book/Report › Inaugural speech
-
Proof of Reliability Convergence to 1 at Rate of Spearman–Brown Formula for Random Test Forms and Irrespective of Item Pool Dimensionality
Ellis, J. L. & Sijtsma, K., Sept 2024, In: Psychometrika. 89, 3, p. 774-795 22 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access -
Recognize the Value of the Sum Score, Psychometrics’ Greatest Accomplishment
Sijtsma, K., Ellis, J. L. & Borsboom, D., Mar 2024, In: Psychometrika. 89, 1, p. 84-117 34 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access