Network approaches to psychopathology have become increasingly common in mental
health research, with many theoretical and methodological developments quickly gaining …

Throughout 2023 and 2024, we served as co-guest editors of a topical collection in
Educational Psychology Review on The Past, Present, and Future of Theory Development in …

The network theory of psychopathology posits that mental disorders are systems of mutually
reinforcing symptoms. This framework has proven highly generative but does not specify …

Psychological science is divided into two distinct methodological traditions. One tradition
seeks to understand how people function at the individual level, while the other seeks to …

Most theories of emotion suggest that emotions are reactions to situations we encounter in
daily life. Process theories of emotion further specify a feedback loop between our …

This scoping review aimed to synthesise methodological steps taken by researchers in the
development of formal, dynamical systems models of health psychology theories. We …

Objective Cross-sectional network studies find mixed results regarding changes in network
structure as a response to treatment across disorders. This study characterized improvement …

Background: Despite decades of research, the current suicide rate is nearly identical to what
it was 100 years ago. This slow progress is due, at least in part, to a lack of formal theories of …

The current paper presents an integrated formal model of typical and atypical development
based on the mechanisms of mutualism and resource competition. The mutualistic network …

In this rejoinder to McNeish (2024) and Mislevy (2024), who both responded to our focus
article on the merits of the simple sum score (Sijtsma et al., 2024), we address several …