PMID: 7931930Aug 1, 1994Paper

Exploring the relationship between thumb-sucking and psychopathology

Journal of Pediatric Psychology
P C FrimanJ W Finney


Studied the relationship between chronic thumb-sucking and behavior problems reflective of psychopathology. Compared scores on the Child Behavior Checklist (CBCL) and Eyberg Child Behavior Inventory (ECBI) for matched samples of thumb-sucking, referred, and nonreferred children. Mean scores for the thumb-sucking and nonreferred samples were equivalent and were significantly lower than scores for the referred sample. Comparing scores for older children (8-14 years) and younger children (4-7 years) did not produce a significant interaction. Correlating measures of thumb-sucking severity with ECBI and CBCL scores produced only 8 (of 42) significant correlations and a mean correlation of only .09. Collectively our results provide little support for the theoretically derived notion that thumb-sucking is necessarily a symptom of psychopathology.


Jun 5, 2008·Behavior Modification·Brad A DufreneJennifer S Kazmerski

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