The primary purpose of this coefficient is to ensure that longer, more complex sentences increase the FRS, indicating lower readability (higher difficulty). A high value for
) : Measures the percentage of words outside a list of 3,000 familiar words. The 0.1579X0.1579 cap X The primary purpose of this coefficient is to
) represents the weight given to the length of sentences within a sample. represents the average sentence length in words. 0.15790.1579 is the constant coefficient applied to that average. more complex sentences increase the FRS