Evaluating Information Sources: TEAS Practice Question with Answer & Explanation

Understanding the Concept: Evaluating Data Sources

In the Reading section of the TEAS, you are often asked to determine which source of information is most relevant to a specific research goal. To answer these correctly, you must match the specific details of the source to the specific requirements of the question.

In this scenario, the goal is to draw a conclusion about a sea turtle's time on land (terrestrial environments). While sea turtles are primarily marine animals, they come ashore for critical life stages—specifically, reproduction.

Why Option B is Correct

Option B (A research study on nest construction) is the best choice because nesting is the primary reason sea turtles leave the ocean.

• Relevance: To build a nest and lay eggs, a turtle must crawl onto the beach, excavate a hole, and remain on land for a significant duration.
• Data Quality: A research study detailing where and how they build these nests provides direct evidence of their behavior while out of the water. This allows a researcher to conclude how long they stay, the types of beaches they prefer, and the physical limitations they face on land.

Why the Other Options are Incorrect

• Option A: While a map of migratory routes is fascinating, it focuses on the turtle's movement through the open ocean. This provides data on their aquatic life, not their time on land.
• Option C: A diagram of skeletal evolution explains how the species changed over millions of years (macro-evolution). While it might explain why they can survive in water, it does not provide data on their current daily or seasonal habits on land.
• Option D: A news article on plastic pollution is a broad environmental topic. While it may mention turtles being harmed in the ocean, it doesn't specifically address the behavioral patterns of their time spent on the beach.

TEAS Tip: Identify the Goal

When faced with "source" questions, underline the "target" in the prompt. Here, the target was "time on land." If the source describes the ocean, feathers/shells, or evolution, it is likely a distractor. Look for the source that places the animal in the specific setting mentioned.

Nursing Context

As a nurse, you will frequently evaluate "sources" of data—such as patient charts, lab results, and family testimonies. You must be able to filter out irrelevant information (like a patient's distant surgical history) to find the data most relevant to their current presenting symptoms.