{'fraction_non_alphanumeric': 0.019097222222222224, 'fraction_numerical': 0.005208333333333333, 'mean_word_length': 5.48314606741573, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Time Series Design to Evaluate Effectiveness of Methadone Maintenance Intervention

The Box-Jenkins interrupted time series design is suggested for use in evaluating the effects of social program intervention. This paper presents an example of a specific application to methadone maintenance treatment intervention for chronic heroin addicts. Using time series analysis, the present evaluation found that entry into methadone maintenance was followed by: 1) a decrease in daily heroin use, 2) a slight increase in daily marijuana use, and 3) an increase in regular employment.