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• W4255671176 abstract "<sec> <title>BACKGROUND</title> Approximately 5%-10% of elementary school children show delayed development of fine motor skills. To address these problems, detection is required. Current assessment tools are time-consuming, require a trained supervisor, and are not motivating for children. Sensor-augmented toys and machine learning have been presented as possible solutions to address this problem. </sec> <sec> <title>OBJECTIVE</title> This study examines whether sensor-augmented toys can be used to assess children’s fine motor skills. The objectives were to (1) predict the outcome of the fine motor skill part of the Movement Assessment Battery for Children Second Edition (fine MABC-2) and (2) study the influence of the classification model, game, type of data, and level of difficulty of the game on the prediction. </sec> <sec> <title>METHODS</title> Children in elementary school (n=95, age 7.8 [SD 0.7] years) performed the fine MABC-2 and played 2 games with a sensor-augmented toy called “Futuro Cube.” The game “roadrunner” focused on speed while the game “maze” focused on precision. Each game had several levels of difficulty. While playing, both sensor and game data were collected. Four supervised machine learning classifiers were trained with these data to predict the fine MABC-2 outcome: k-nearest neighbor (KNN), logistic regression (LR), decision tree (DT), and support vector machine (SVM). First, we compared the performances of the games and classifiers. Subsequently, we compared the levels of difficulty and types of data for the classifier and game that performed best on accuracy and F1 score. For all statistical tests, we used α=.05. </sec> <sec> <title>RESULTS</title> The highest achieved mean accuracy (0.76) was achieved with the DT classifier that was trained on both sensor and game data obtained from playing the easiest and the hardest level of the roadrunner game. Significant differences in performance were found in the accuracy scores between data obtained from the roadrunner and maze games (DT, <i>P</i>=.03; KNN, <i>P</i>=.01; LR, <i>P</i>=.02; SVM, <i>P</i>=.04). No significant differences in performance were found in the accuracy scores between the best performing classifier and the other 3 classifiers for both the roadrunner game (DT vs KNN, <i>P</i>=.42; DT vs LR, <i>P</i>=.35; DT vs SVM, <i>P</i>=.08) and the maze game (DT vs KNN, <i>P</i>=.15; DT vs LR, <i>P</i>=.62; DT vs SVM, <i>P</i>=.26). The accuracy of only the best performing level of difficulty (combination of the easiest and hardest level) achieved with the DT classifier trained with sensor and game data obtained from the roadrunner game was significantly better than the combination of the easiest and middle level (<i>P</i>=.046). </sec> <sec> <title>CONCLUSIONS</title> The results of our study show that sensor-augmented toys can efficiently predict the fine MABC-2 scores for children in elementary school. Selecting the game type (focusing on speed or precision) and data type (sensor or game data) is more important for determining the performance than selecting the machine learning classifier or level of difficulty. </sec>" @default.
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• W4255671176 date "2020-09-10" @default.
• W4255671176 modified "2023-09-27" @default.
• W4255671176 title "Assessing Children’s Fine Motor Skills With Sensor-Augmented Toys: Machine Learning Approach (Preprint)" @default.
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• W4255671176 doi "https://doi.org/10.2196/preprints.24237" @default.
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