Question

The authors of the paper "Flat-Footedness Is Not a Disadvantage for Athletic Performance in Children Aged 11 to 15 Years" (Pediatrics [2009]: e386-e392) collected data from 218 children on foot arch height and motor ability. The resulting data were used to investigate the relationship between arch height and motor ability.

Short answer

In conclusion, the analysis of the relationship between 'arch height' and 'motor ability' involves identifying the variables, analyzing the data through statistical methods, visualizing the data through graphs, and drawing conclusions based on this analysis.

Step-by-step solution

Identify the Variables

The two variables we're looking at are 'arch height' and 'motor ability'. 'Arch height' is a quantitative variable measured in physical units, while 'motor ability' is also a quantitative variable measured in terms of a person's physical capabilities.

Data Analysis

The next step will be analyzing the data, and for this purpose, statistical methods are often used. Depending on the data type, techniques like group statistics, t-tests or correlation coefficient calculations may be useful.

Visualize the data

Visualizing the data can be helpful to identify any trends or patterns. This step often involves constructing a relevant graph, such as a scatter plot which can show the relationship between the two variables.

Formulate Conclusions

Based on the data analysis and visualization, conclusions about the relationship between 'arch height' and 'motor ability' can be drawn. If the correlation coefficient is strong and the scatter plot shows a clear trend, it can be concluded that there is a relationship between the two variables.