def normalize_severity_at_baseline(mean_pre_test_treatment, maximum_on_clinical_scale):
    """Normalizes the pre-test scores in order to include them in the SAOB analysis.
    
    Parameters
    ----------    
    mean_post_test_treatment: float
        Mean score after the treatment.
    
    maximum_on_clinical_scale: int
        Maximum score possible to be obtained on the clinical scale.
                                      
    Returns
    -------
    severity_at_baseline: float
        Normalized pre-test score.
    
    """

    severity_at_baseline = mean_pre_test_treatment/maximum_on_clinical_scale

    return severity_at_baseline