def METHOD_NAME(indexed=False):
    """
    Each row in this wide dataset represents the results of 100 simulated participants
    on three hypothetical experiments, along with their gender and control/treatment group.
    Returns:
        A `pandas.DataFrame` with 100 rows and the following columns:
        `['experiment_1', 'experiment_2', 'experiment_3', 'gender', 'group']`.
        If `indexed` is True, the data frame index is named "participant" """
    df = _get_dataset("experiment")
    if indexed:
        df.index.name = "participant"
    return df