AP English Language and Composition Practice Quiz: Evaluating credibility, bias, and perspective
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Test your understanding with short quizzes. This quiz has 10 questions to check your progress.
Question 1 of 10
All Questions (10)
A) The length of the document
B) The author's expertise and use of verifiable evidence
C) The popularity of the source's viewpoint
D) The emotional language used to engage the reader
Correct Answer: B
Based on Essential Knowledge 1, credibility is established through the author's qualifications, their reputation, and the quality of the evidence they present. Factors like length, popularity, or emotional appeal do not inherently make a source credible.
A) Objective reporting
B) Scholarly perspective
C) Source bias
D) Enhanced credibility
Correct Answer: C
According to Essential Knowledge 2, the article demonstrates bias through the selection and omission of sources and the use of loaded language ("job-killing," "extremists") to favor one viewpoint over another, which is not objective.
A) Perspective is always factual, while bias is always opinion-based.
B) Perspective is a point of view shaped by experience, while bias is an unfair prejudice that often distorts information.
C) A source with a strong perspective cannot be credible, whereas a biased source can be.
D) Bias refers to the author's background, while perspective refers to their intentional manipulation of facts.
Correct Answer: B
Based on Essential Knowledge 2 and 3, perspective is the lens through which an author sees a topic, shaped by their background; it is a natural part of any source. Bias, however, involves an unfair inclination that can lead to the distortion or misrepresentation of information.
A) A blog post by a factory worker who lost their job.
B) A peer-reviewed article in an academic economics journal.
C) A press release from a corporation that benefits from the policy.
D) A political campaign speech from a candidate who opposes the policy.
Correct Answer: B
According to Essential Knowledge 1, a peer-reviewed academic journal is highly credible because its content is vetted by other experts for accuracy, methodology, and evidence-based conclusions. The other sources (A, C, D) are more likely to have strong perspectives and biases that are not subject to rigorous academic review.
A) use of primary sources.
B) choice of words and omission of certain facts.
C) citation format and bibliography.
D) educational background and credentials.
Correct Answer: B
Essential Knowledge 2 states that bias is most evident in the author's diction (word choice), tone, and what information they choose to include or exclude. While credentials (D) inform perspective, the textual evidence (B) is the direct indicator of bias.
A) deliberate attempt to mislead the audience.
B) point of view, shaped by their background, beliefs, and experiences.
C) expertise and qualifications on a specific subject.
D) summary of purely objective, verifiable facts.
Correct Answer: B
Essential Knowledge 3 defines perspective as the unique viewpoint or lens an author brings to a topic. It is influenced by a combination of personal factors like their culture, education, and personal history, and it is a natural element of any created work.
A) perspective, because it is from a non-traditional source.
B) bias, because it is clearly written.
C) credibility, due to a lack of expertise and verifiable evidence.
D) purpose, because it provides a public service.
Correct Answer: C
The Learning Objective requires evaluating sources. This source lacks key indicators of credibility (Essential Knowledge 1): there are no expert authors (credentials), no verifiable evidence (scientific studies), and a clear conflict of interest (selling a product), all of which undermine its trustworthiness.
A) loaded language.
B) expert testimony.
C) perspective.
D) omission.
Correct Answer: D
According to Essential Knowledge 2, one way bias is expressed is through the selection and omission of facts. By selectively leaving out important, relevant facts that would provide a more balanced view, the report demonstrates bias through omission to sway the reader's opinion.
A) Choose the account that is longer and more detailed.
B) Dismiss both accounts as unreliable due to the conflict.
C) Assume the more recently published account is more accurate.
D) Investigate the authors' backgrounds, perspectives, and potential biases for each account.
Correct Answer: D
The Learning Objective requires analyzing sources for point of view and bias. To understand why two accounts differ, a researcher must first analyze the context of each source. This involves examining who the authors were, their perspectives, and any biases that might have influenced their interpretation of the event (Essential Knowledge 2 & 3).
A) It enhances credibility by showing the author has a clear opinion.
B) It has no impact on credibility, which is determined solely by facts.
C) It generally undermines credibility because it suggests the information may be distorted or incomplete.
D) It makes a source more credible for academic purposes but less credible for a general audience.
Correct Answer: C
Strong bias (Essential Knowledge 2) often leads to a one-sided presentation of information, which undermines the source's trustworthiness and, therefore, its credibility (Essential Knowledge 1). A credible source should strive for objectivity and a fair representation of evidence.