The following are two of the sample passages in the book, with the difficult words not found on their new word list underlined (pp. 135-140). The right-hand column gives a few readability statistics, the New Dale-Chall mean cloze score, and reading grade level.


Grades 5-6

Eskimos of Alaska's Arctic north coast have hunted whales for centuries.

Survival has depended on killing the 80-foot-long bowhead whales that swim from the Bering Sea to the ice-clogged Beaufort Sea each Spring. The Eskimos' entire way of life has been centered around the hunt.

But now that way of life is being threatened by America's need for oil, say many Eskimos who hunt the whales.

Huge amounts of oil may be beneath the Beaufort Sea. And oil companies want to begin drilling this spring.

However, many Eskimos say severe storms and ice conditions make drilling dangerous...

From My Weekly Reader, Edition 6

Readability Data

Number of Words in Sample 100

Number of Whole Sentences 6

Number of Unfamiliar Words 11

Cloze Score 42

Reading Level 5-6

Grades 9-10

The controversy over the laser-armed satellite boils down to two related questions: Will it be technically effective? And should the United States make a massive effort to deploy it?

To its backers, the laser seems the perfect weapon. Traveling in a straight line at 186,000 miles per second, a laser beam is tens of thousands of times as fast as any bullet or rocket. It could strike its target with a power of many watts per square inch. The resulting heat, combined with a mechanical shock wave created by recoil as surface layers were blasted away, could quickly melt...

From Discover

Readability Data

Number of Words in Sample 100

Number of Whole Sentences 5

Number of Unfamiliar Words 23

Cloze Score 28

Reading Level 9-10

ATOS readability formula for books Researchers at School Renaissance Institute (1999, 2000, Paul 2003) and Touchstone Applied Science Associates produced the Advantage-TASA Open Standard (ATOS) Readability Formula for Books. Their goal was to create an "open" formula that would be available to the educational community free of charge, that would be easy to use, and that could be used with any nationally normed reading tests.

The project was perhaps the most extensive study of readability ever conducted. Formula developers used 650 norm-referenced reading tests, 474 million words representing all the text of 28,000 K-12 books read by real students with many published in the previous five years, an expanded vocabulary list, and the reader records of more than 30,000 students who read and tested on 950,000 actual books.

The readability formula was part of a computerized system to help teachers conduct a program of guided independent reading to maximize learning gains. Noting the differences in difficulty between samples and entire books, the developers claim this is the first readability formula based on whole books, not just samples.