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Research article

First published 2015-9

The Problem of Cultural-Historical Typology From the Four-Level-Cognitive-Development Theory Perspective

Vladimir V. Glebkin

Journal of Cross-Cultural Psychology

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Research article

First published 2025-4

Sample size determinations in four-level longitudinal cluster randomized trials with random slope

Priyanka Majumder, Siuli Mukhopadhyay, Bo Wang [...]

Statistical Methods in Medical Research

Open access

Research article

First published 2019-6

Modified expansive laminoplasty and fusion compared with anterior cervical surgeries in treating four-level cervical spondylotic myelopathy

Chuanli Zhou, Chenguang Liu, Ripul R. Panchal [...]

Journal of International Medical Research

Open access

Research article

First published 2021-1

A four-level test system for evaluating pavement compaction performance of autonomous articulated vehicles

Tong Xu, Dong Wang, Zuodong Xiao [...]

International Journal of Advanced Robotic Systems

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Research article

First published 2004-09

Four levels of self-interpretation

Hartmut Rosa

Philosophy & Social Criticism

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Research article

First published 2012-12

The Variance of Intraclass Correlations in Three- and Four-Level Models

Larry V. Hedges, E. C. Hedberg, Arend M. Kuyper

Educational and Psychological Measurement

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Research article

First published 2014-8

Conditional Optimal Design in Three- and Four-Level Experiments

Larry V. Hedges, Michael Borenstein

Journal of Educational and Behavioral Statistics

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Research article

First published 2019-12

Uncertainty Avoidance and Intrapreneurship: A Four-Level Investigation

Maja Arslanagic-Kalajdzic, Matej Cerne, Selma Kadic-Maglajlic

Journal of Macromarketing

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Research article

First published 2019-12

Artificial intelligence and counseling: Four levels of implementation

Russell Fulmer

Theory & Psychology

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Research article

First published 2002-4

Control of a Four-Level Elevator System Using a Programmable Logic Controller

L. Cheded, Ma'an Al-Mulla

International Journal of Electrical Engineering & Education

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