What is a Lexile Measure (蓝思分级)
2013-07-07 07:47阅读：
A Lexile measure is a valuable piece of information about either
an individual's reading ability or
the difficulty of a text, like a book or
magazine article. The Lexile measure
is shown as a number with an 'L' after it — 880L is 880
Lexile.
A student gets his or her Lexile
reader measure from a reading test or program. For
example, if a student receives an 880L on her end-of-grade reading
test, she is an 880 Lexile reader. Higher Lexile measures represent
a higher level of reading ability. A Lexile reader measure can
range from below 200L for beginning readers to above 1600L for
advanced readers. Readers who score at or below 0L receive a BR for
Beginning Reader.
A book, article or piece of text gets a
Lexile text measure when it's analyzed by
MetaMetrics. For example, the first 'Harry Potter' book me
asures 880L, so it's called an 880 Lexile book.
A Lexile text measure is based on two strong predictors
of how difficult a text is to comprehend:
word frequency and
sentence
length.
Many other factors affect the
relationship between a reader and a book, including its content,
the age and interests of the reader, and the design of the actual
book. The Lexile text measure is a
good starting point in the book-selection process, with these other
factors then being considered. Lexile text measures are
rounded to the nearest 10L. Text measures at or below 0L are
reported as BR for Beginning Reader.
The idea behind The Lexile Framework for Reading is simple: if we
know how well a student can read and how hard a specific book is to
comprehend, we can predict how well that student will likely
understand the book.
When used together, Lexile measures help a reader find books and
articles at an appropriate level of difficulty (visit
Find a Book ), and determine how
well that reader will likely comprehend a text. You also can use
Lexile measures to monitor a reader's growth in reading ability
over time.
Lexile Measures Help Readers Grow, and Help Parents and
Teachers Know
Teachers and parents can best serve a student's literacy needs when
they treat him or her as a unique individual, rather than as a test
score or a grade-level norm or average. The reading abilities of
young people in the same grade at school can vary just as much as
their shoe sizes. However, grade-leveling methods commonly are used
to match students with books.
When a Lexile text measure matches a Lexile reader measure, this is
called a 'targeted' reading experience.
The
reader will likely encounter some level of difficulty with the
text, but not enough to get frustrated. This is the best way to
grow as a reader—with text that's not too hard but not too
easy.
When you receive a Lexile measure, try not to focus on the exact
number. Instead, consider a reading range around the number.
A person's Lexile range, or reading
comprehension 'sweet spot,' is from 100L
below to 50L above his or her reported Lexile
measure. Use this Lexile range in our
Find a Book search. And don't be
afraid to look at books above and below someone's Lexile range.
Just know that a reader might find these books particularly
challenging or simple.
If a student tackles reading material above his or her Lexile
range, consider what additional instruction or lower-level reading
resources might help. Ask him or her to keep track of unknown
words, and look them up together. Or take turns reading aloud to
each other to chop up the reading experience into smaller portions.
Likewise, you can reward students with books that fall below his or
her Lexile range for an easier reading experience.
（from
https://www.lexile.com/about-lexile/lexile-overview/）
