This dataset, infant_walking_df, is a data frame containing the ages (in months) at which 12 infants were reported by their mothers to have started walking. The infants were randomly assigned to either an "exercise" or "no-exercise" group as part of the study conducted by Zelazo et al. (1972). The data are also presented in Table 9.8 of Wolfe and Schneider, *Intuitive Introductory Statistics*.
Usage
data(infant_walking_df)Format
A data frame with 6 observations and 2 variables:
- exercise
Numeric vector indicating the age at which infants in the exercise group began walking (months)
- no_exercise
Numeric vector indicating the age at which infants in the no-exercise group began walking (months)
Details
The dataset name has been kept as 'infant_walking_df' to avoid confusion with other datasets in the R ecosystem. This naming convention helps distinguish this dataset as part of the healthmotionR package and assists users in identifying its specific characteristics. The suffix 'df' indicates that the dataset is a data frame. The original content has not been modified in any way.