MoCA Sentence Repetition 3 — Questions and Answers
Question 1: Which of the following best illustrates why the MoCA uses complex sentences for repetition rather than simple ones?
- Complex sentences are fairer to highly educated patients
- Simple sentences are too easy and fail to detect cognitive impairment (Correct answer)
- Complex sentences test reading comprehension more accurately
- Simple sentences correlate better with dementia severity
Correct answer: Simple sentences are too easy and fail to detect cognitive impairment
Complex sentences with multiple clauses and less predictable structures push the limits of phonological working memory, whereas simple sentences (e.g., "The dog ran.") can often be repeated by patients with significant cognitive impairment.
Question 2: A patient with Broca's aphasia attempts MoCA sentence repetition but produces a telegraphic output, omitting function words. This performance reflects:
- Normal MoCA performance for age 80+
- A language disorder (agrammatic aphasia) affecting sentence repetition (Correct answer)
- Severe attention deficit
- Encoding failure of the sentence meaning
Correct answer: A language disorder (agrammatic aphasia) affecting sentence repetition
Broca's aphasia is characterized by non-fluent, effortful speech with omission of grammatical function words (agrammatism). This pattern on repetition reflects a language disorder distinct from dementia.
Question 3: On the MoCA, the language domain (naming + sentence repetition + fluency) accounts for how many total points?
- 4 points
- 5 points
- 6 points (Correct answer)
- 7 points
Correct answer: 6 points
The language domain includes: 3 points for naming (3 animals), 2 points for sentence repetition (2 sentences), and 1 point for letter fluency (11+ F-words in 60 sec) = 6 points total.
Question 4: If a patient spontaneously corrects a sentence repetition error during the same utterance, the examiner should:
- Award 1 point because self-correction shows metacognitive awareness
- Award 0 points because the final response was not verbatim from the start (Correct answer)
- Award 0.5 points for the self-correction attempt
- Administer the sentence again
Correct answer: Award 0 points because the final response was not verbatim from the start
A spontaneous correction within the same utterance is clinically debated. In strict scoring, verbatim reproduction is required. A clinician should note any self-corrections and use clinical judgment, but standard scoring awards 0 for non-verbatim responses.
Question 5: What is the practical clinical implication of a patient scoring 0 on both MoCA sentence repetition items?
- It only matters if the patient also fails naming
- It reduces the total score by 2, which can push a borderline score into the impaired range (Correct answer)
- It has no clinical significance in isolation
- It automatically confirms a diagnosis of aphasia
Correct answer: It reduces the total score by 2, which can push a borderline score into the impaired range
Scoring 0 on both sentences represents a meaningful 2-point reduction. Combined with other domain failures, it can push a patient below the MCI cutoff and warrants referral for comprehensive neuropsychological evaluation.
Question 6: How does sentence repetition differ from the digit span task in what it assesses?
- They are identical in what they measure
- Digit span uses meaningful language; sentence repetition uses meaningless sequences
- Sentence repetition tests language in context while digit span tests raw auditory span (Correct answer)
- Digit span is harder because digits have no meaning
Correct answer: Sentence repetition tests language in context while digit span tests raw auditory span
Digit span tests raw auditory working memory span with meaningless sequences, while sentence repetition tests verbal working memory within meaningful linguistic context, additionally engaging language comprehension and production mechanisms.
MoCA Sentence Repetition 3
Which of the following best illustrates why the MoCA uses complex sentences for repetition rather than simple ones?