1
LETRS Volume 1 Unit 1-4 Posttest Answers
Actual Exam 2026/2027 Complete Exam-Style
Questions with Detailed Rationales | 100%
Verified | Pass Guaranteed – A+ Graded
Part I: Unit 1 – The Challenge of Learning to Read (Questions
1-13)
Q1: According to the Simple View of Reading formula (R = D ×
C), which of the following best describes what happens when a
student has strong language comprehension (C) but weak
decoding ability (D)?
A. The student will be an excellent comprehender who reads
fluently
B. The student will comprehend well when listening but struggle
to understand what they read independently [CORRECT]
C. The student will be unable to comprehend text even when
read aloud
D. The student's reading ability will be average regardless of
decoding skill
Correct Answer: B
,2
Rationale: The Simple View of Reading states that Reading
Comprehension (R) equals Decoding (D) multiplied by
Language Comprehension (C). If either D or C is low or zero,
reading comprehension suffers. A student with strong language
comprehension can understand complex ideas when listening,
but without adequate decoding skills, they can't independently
access written text—so their reading comprehension collapses
even though their ability to comprehend language itself is intact.
This pattern is common in students with dyslexia who have good
oral language skills but struggle with word-level reading.
Q2: In Scarborough's Reading Rope model, which two major
strands are woven together to produce skilled reading?
A. Fluency and vocabulary
B. Phonological awareness and phonics
C. Word recognition (including sub-skills) and language
comprehension (including sub-skills) [CORRECT]
D. Decoding and spelling
Correct Answer: C
,3
Rationale: Scarborough's Reading Rope visually represents
skilled reading as the intertwining of two major strands: Word
Recognition (made up of phonological awareness, decoding, and
sight recognition) and Language Comprehension (made up of
background knowledge, vocabulary, language structures, verbal
reasoning, and literacy knowledge). These strands don't operate
independently—they weave together over time through
instruction and practice to produce fluent, skilled reading with
automatic word recognition and deep comprehension. The rope
metaphor also reminds us that each strand contains multiple
fibers (sub-skills) that must all be developed.
Q3: [CLASSROOM SCENARIO] Mrs. Patterson is a third-
grade teacher who notices that Marcus, one of her students,
started kindergarten knowing fewer letters and sounds than his
peers. He received some reading instruction but always seemed
slightly behind. Now in third grade, he reads about two grade
levels below benchmark, avoids reading aloud, and says he
"hates reading." His classmates have pulled further and further
ahead. What phenomenon does Marcus's trajectory BEST
illustrate?
A. The achievement gap
B. The Matthew Effect in reading [CORRECT]
C. Dyslexia
D. Developmental delay
, 4
Correct Answer: B
Rationale: The Matthew Effect—named after the biblical
passage about "the rich get richer and the poor get poorer"—
describes exactly what's happening to Marcus. Students who
start with stronger early literacy skills read more, which builds
more vocabulary, background knowledge, and reading skill,
which leads them to read even more. Conversely, students who
struggle early avoid reading, get less practice, fall further
behind, and the gap widens exponentially over time. Marcus
didn't just fail to catch up—the gap actually accelerated because
his initial disadvantages compounded. This is why early
intervention is so critical; we need to prevent or close gaps
before the Matthew Effect takes hold.
Q4: Which statement accurately describes the relationship
between word recognition and reading comprehension according
to reading science research?
A. Word recognition and comprehension are separate skills that
develop independently
B. Automatic and accurate word recognition is a necessary
prerequisite for reading comprehension because cognitive
resources must be freed from word-level work to focus on
meaning [CORRECT]
LETRS Volume 1 Unit 1-4 Posttest Answers
Actual Exam 2026/2027 Complete Exam-Style
Questions with Detailed Rationales | 100%
Verified | Pass Guaranteed – A+ Graded
Part I: Unit 1 – The Challenge of Learning to Read (Questions
1-13)
Q1: According to the Simple View of Reading formula (R = D ×
C), which of the following best describes what happens when a
student has strong language comprehension (C) but weak
decoding ability (D)?
A. The student will be an excellent comprehender who reads
fluently
B. The student will comprehend well when listening but struggle
to understand what they read independently [CORRECT]
C. The student will be unable to comprehend text even when
read aloud
D. The student's reading ability will be average regardless of
decoding skill
Correct Answer: B
,2
Rationale: The Simple View of Reading states that Reading
Comprehension (R) equals Decoding (D) multiplied by
Language Comprehension (C). If either D or C is low or zero,
reading comprehension suffers. A student with strong language
comprehension can understand complex ideas when listening,
but without adequate decoding skills, they can't independently
access written text—so their reading comprehension collapses
even though their ability to comprehend language itself is intact.
This pattern is common in students with dyslexia who have good
oral language skills but struggle with word-level reading.
Q2: In Scarborough's Reading Rope model, which two major
strands are woven together to produce skilled reading?
A. Fluency and vocabulary
B. Phonological awareness and phonics
C. Word recognition (including sub-skills) and language
comprehension (including sub-skills) [CORRECT]
D. Decoding and spelling
Correct Answer: C
,3
Rationale: Scarborough's Reading Rope visually represents
skilled reading as the intertwining of two major strands: Word
Recognition (made up of phonological awareness, decoding, and
sight recognition) and Language Comprehension (made up of
background knowledge, vocabulary, language structures, verbal
reasoning, and literacy knowledge). These strands don't operate
independently—they weave together over time through
instruction and practice to produce fluent, skilled reading with
automatic word recognition and deep comprehension. The rope
metaphor also reminds us that each strand contains multiple
fibers (sub-skills) that must all be developed.
Q3: [CLASSROOM SCENARIO] Mrs. Patterson is a third-
grade teacher who notices that Marcus, one of her students,
started kindergarten knowing fewer letters and sounds than his
peers. He received some reading instruction but always seemed
slightly behind. Now in third grade, he reads about two grade
levels below benchmark, avoids reading aloud, and says he
"hates reading." His classmates have pulled further and further
ahead. What phenomenon does Marcus's trajectory BEST
illustrate?
A. The achievement gap
B. The Matthew Effect in reading [CORRECT]
C. Dyslexia
D. Developmental delay
, 4
Correct Answer: B
Rationale: The Matthew Effect—named after the biblical
passage about "the rich get richer and the poor get poorer"—
describes exactly what's happening to Marcus. Students who
start with stronger early literacy skills read more, which builds
more vocabulary, background knowledge, and reading skill,
which leads them to read even more. Conversely, students who
struggle early avoid reading, get less practice, fall further
behind, and the gap widens exponentially over time. Marcus
didn't just fail to catch up—the gap actually accelerated because
his initial disadvantages compounded. This is why early
intervention is so critical; we need to prevent or close gaps
before the Matthew Effect takes hold.
Q4: Which statement accurately describes the relationship
between word recognition and reading comprehension according
to reading science research?
A. Word recognition and comprehension are separate skills that
develop independently
B. Automatic and accurate word recognition is a necessary
prerequisite for reading comprehension because cognitive
resources must be freed from word-level work to focus on
meaning [CORRECT]
