What can be learned in a context-specific proportion congruence paradigm? Implications for reproducibility

Area of Science:

• Cognitive Psychology
• Human Learning and Memory
• Experimental Psychology

Background:

• The context-specific proportion congruence (CSPC) effect, reported by Crump and Milliken (2009), provided strong evidence for context-specific control.
• Subsequent attempts to replicate this effect have largely failed, raising questions about the robustness and interpretation of the original findings.

Purpose of the Study:

• To investigate the reasons behind the inconsistent findings regarding the CSPC effect.
• To test the consistency hypothesis and introduce novel hypotheses concerning learning opportunities within the CSPC paradigm.

Main Methods:

• Utilized a picture-word Stroop task across four experiments to explore context-specific control.
• Manipulated the presence of diagnostic sets and analyzed learning associations (item-PC vs. location-PC) to interpret replication failures.

Main Results:

• Experiment 2 supported the consistency hypothesis by demonstrating a CSPC effect without a diagnostic set.
• Experiment 3 provided novel evidence for item-specific proportion congruence (item-PC) learning.
• Experiment 4 showed limited evidence for location-item conjunctive learning.

Conclusions:

• Replication failures of the CSPC effect may indicate that episodic representations are organized by item, not location.
• The proposed item-PC learning hypothesis explains previous findings, including replication attempts, and offers a new framework for understanding context-specific control.
• Further research is needed to elucidate the factors influencing the learning of item-PC versus location-PC associations.