We calculated the reading level of the No Talking Dogs Press books using Flesch-Kincaid for two main reasons. Most important, like our books, Flesch-Kincaid was designed for adults. Less important, we needed a well-known standard of measure.
Flesch-Kincaid has a long history. It is familiar.
Rudolph Flesch came up with tests for reading ease and grade level. In 1975 Peter Kinkaid and his team tailored the grade level test for the United States Navy. By 1978 the Army was using Flesch-Kincaid to assess the reading difficulty of technical manuals. It became the Department of Defense standard. Soon after, Pennsylvania required car insurance policies be written at no higher than a ninth-grade level and used Flesch-Kincaid for its measure. Now many states have the same requirements, and not only for car insurance forms.
Some may argue that a test designed for English language learners would suit us better. They may be right. Unfortunately, no such universally-accepted standard measure exists.
We may grade any text by plunking it into this site: https://readability-score.com. This site also allows easy comparison of Flesch-Kincaid with other measures such as Gunning-Fog. Each grading system has its degree of arbitrariness.
Flesch-Kincaid reading levels and word counts for the No Talking Dogs Press library
The American Holiday Collection
Vinh and Tram enjoy Halloween RL 2.0/WC 2637
Laila’s First Thanksgiving RL 2.6/WC 2202
Vlado and the Presidents RL 2.2/WC 1286
James and Barry Study Black History RL 1.7/WC 2776
Mehdi’s Memorial Day Run RL 3.0/WC 1381
Rosa Maria’s Independence Day RL 2.7/WC 2040
The Good Friends Series
You Can Find Everything at the Library RL 1.2/WC 2571
The Next Steps RL 1.3/WC 2777
Wedding Bells RL 2.1/WC 2539
The Old House Series
The Old House on South Sixteenth Street RL 2.0/WC 5317
Tip, the Noisy Suit, and the Old House on South Sixteenth Street RL 1.6/WC 6021
The Happiest Woman on South Sixteenth Street RL 2.2/WC 6847