OAI is seeking a postdoctoral scientist to develop diagnostic tools for evaluating state-space stock assessment models. Although state-space assessment models have become increasingly popular in recent years, there are open questions regarding whether traditionally-used stock assessment model diagnostics (such as retrospective error, model residuals, etc.) are reliable indicators of model performance in state-space models. The research project will use an established operating model to generate simulated stock assessment datasets and test a variety of commonly-used and newly-developed diagnostic metrics. The goal will be to determine which diagnostics perform best at identifying the model with the lowest estimation error. The postdoctoral scientist will have the opportunity to develop thei