{'fraction_non_alphanumeric': 0.020242914979757085, 'fraction_numerical': 0.006072874493927126, 'mean_word_length': 5.428571428571429, '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}}
A Meta-analysis of the Effects of Advance Organizers on Learning and Retention

Published and unpublished studies (N = 135) of the facilitative effect of advance organizers on learning and retention were examined. Possible influencing variables such as grade level, subject area studied, organizer presentation mode, and subject ability level were also examined in relation to advance organizer effect. Advance organizers were shown to have a facilitative effect on both learning and retention.