Predicting executive function task scores with the Rey-Osterrieth Complex Figure.

Area of Science:

• Neuropsychology
• Developmental Psychology
• Cognitive Neuroscience

Background:

• The Boston Qualitative Scoring System (BQSS) provides 17 qualitative ratings and 6 summary scores from the Rey-Osterrieth Complex Figure Test (ROCF).
• Previous research indicated that 5 of 6 BQSS summary scores correlate with executive function tests in children.
• Existing BQSS scores offer valuable insights but may not fully capture the complexity of executive functions.

Purpose of the Study:

• To develop a novel summary score derived from BQSS qualitative ratings.
• To enhance the correlation between ROCF-based scores and executive function assessments.
• To identify a more sensitive measure for evaluating executive functions in children.

Main Methods:

• Utilized multiple regression analysis to predict executive function scores (WCST-Keio Version: PEN, CA, DSM; Mazes) from BQSS qualitative scores.
• Analyzed data from 78 children (ages 5y5m-14y11m) with diverse neuropsychological disorders.
• Focused on ROCF drawings in the copy condition.

Main Results:

• Significant predictive models were established for PEN, CA, and Mazes scores.
• The predictive models for Mazes scores demonstrated the highest accuracy.
• A second model for Mazes scores emerged as the most suitable candidate for a new summary score, achieving a coefficient of multiple determination (adjusted) of 0.467 and a multiple correlation coefficient of 0.695.

Conclusions:

• A new BQSS-derived summary score shows significant potential for assessing executive functions.
• This novel score demonstrates superior predictive accuracy for specific executive functions, particularly visuospatial planning (Mazes).
• Further research is recommended to validate the clinical utility and application of this new summary score.