ATI TEAS (Test of Essential Academic Skills) Version 7ReadingHard
A research abstract states: 'This double-blind, placebo-controlled study found a statistically significant reduction in symptom severity among participants receiving the novel therapeutic agent (p < 0.01) compared to the placebo group. However, no significant difference was observed in quality of life measures between the two groups.' What can be concluded about the novel therapeutic agent based on this abstract?
- AIt has harmful side effects that reduce quality of life.
- BIt improves specific symptoms but not overall well-being.
- CIt cures the disease completely.
- DIt is less effective than the placebo.
Show answer & explanationAnswer & explanation
Correct answer: B. It improves specific symptoms but not overall well-being.
The abstract explicitly states a 'statistically significant reduction in symptom severity' which indicates effectiveness for symptoms. However, it also states 'no significant difference was observed in quality of life measures,' meaning it did not improve overall well-being beyond what the placebo achieved. This leads to the conclusion that it helps symptoms but not overall quality of life.
Why the other options are wrong
- A. The abstract states 'no significant difference' in quality of life, not that it actively reduced it or caused harmful side effects. This is an over-inference.
- C. The abstract mentions 'reduction in symptom severity,' not a cure.
- D. The agent showed a 'statistically significant reduction in symptom severity' compared to placebo, meaning it was more effective for symptoms, not less.
Interpreting Research Abstracts
The process of critically analyzing the summary of a research study to understand its key findings, limitations, and implications.
- Focus on stated results, not assumptions.
- Distinguish between statistical significance and practical importance.
- Identify explicit conclusions and noted limitations.
Memory trick: READ: Results, Evidence, Assumptions, Details.