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Abstract
To explain the emergence of suicidal ideation within an individual we developed the emotion self-confidence model of suicidal ideation (ESC-SI Model). The modelproposes that, when faced with the stressor of negative emotionality, an individual with low expectations for coping with or changing the negative emotionality (low emotion self-confidence) is more likely to consider suicidal ideation. A preliminary study in adolescents supported this hypothesis. The present paper investigated the model more fully; following up 71 adolescents 2.2–3.7 years later. The main aims were to: (a) provide further validation of the ESC-SI Model through replication; (b) evaluate stability and change in key variables over time; (c) assess the causal hypothesis that emotion self-confidence appraisals would predict later suicidal ideation. Cross-sectional analysis replicated results obtained at baseline, supporting the model. Longitudinal analysis showed negative emotionality to be moderately stable, emotion self-confidence highly stable, and suicidal ideation highly variable, over time. Baseline emotion self-confidence did not explain unique variance in later suicidal ideation, failing to establish a causal relationship over this time frame. Links between emotion self-confidence and suicidal ideation were strongest during concurrent observations; a future focus on specific emotional experiences is recommended.
