a scientist wants to conduct qualitative research which method should she use

ATI TEAS 7

Practice TEAS Science Test

1. A researcher wants to conduct qualitative research. Which method should they use?

A. Collecting patient narratives
B. Tracking the dosage of a drug and its blood levels in the patient
C. Observing a patient's physical changes
D. Writing journal notes about the research experience

Correct answer: A

Rationale: Qualitative research focuses on gathering non-numerical, descriptive data to explore experiences, behaviors, or perspectives. Collecting patient narratives aligns with qualitative research as it involves capturing detailed accounts of individuals' experiences or viewpoints. Choices B, C, and D involve more quantitative approaches by focusing on measurable quantities, observations, or structured note-taking, which are not characteristic of qualitative research methods.

2. Which of the following statements regarding the working of the heart is not correct?

A. The atria contract, and the valves open to allow blood into the ventricles.
B. The heartbeat begins when the heart muscles relax, and blood flows into the atria.
C. The valves close to stop blood from flowing backward.
D. The ventricles contract, forcing blood to leave the heart.

Correct answer: B

Rationale: The correct answer is B because the heartbeat actually begins when the heart muscles relax, allowing the chambers to fill with blood. The contraction phase follows, which propels blood out of the heart. The other statements are accurate in describing the normal sequence of events in the heart's functioning: the atria contract to push blood into the ventricles, the valves close to prevent backflow of blood, and the ventricles contract to pump blood out of the heart.

3. Which of the following is NOT a property of a catalyst?

A. Increases the rate of a reaction
B. Remains unchanged after the reaction
C. Lowers the activation energy
D. Creates new products

Correct answer: D

Rationale: A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It remains unchanged after the reaction, which eliminates option B. A catalyst works by lowering the activation energy required for the reaction to occur, which eliminates option C. A catalyst does not create new products in a reaction; it only facilitates the conversion of reactants into products more efficiently. Therefore, option D is NOT a property of a catalyst.

4. Which of the following nerves has the longest axon in the human body?

A. Dorsal root ganglion
B. Laryngeal nerve
C. Sciatic nerve
D. None of the above

Correct answer: C

Rationale: The sciatic nerve contains the longest axon in the human body, extending from the lower back down the leg. This nerve is responsible for innervating the muscles of the lower limb. The dorsal root ganglion and laryngeal nerve do not possess axons as long as the sciatic nerve, making them incorrect choices. Therefore, the correct answer is C, the sciatic nerve.

5. What is the condition called when someone experiences a temporary loss of consciousness due to a lack of blood flow to the brain?

A. Stroke
B. Epilepsy
C. Syncope (fainting)
D. Multiple sclerosis

Correct answer: C

Rationale: Syncope, also known as fainting, is a temporary loss of consciousness caused by a lack of blood flow to the brain. This can occur due to various reasons such as low blood pressure, dehydration, or sudden emotional stress. Strokes involve a disruption of blood flow to the brain resulting in brain cell damage. Epilepsy is a neurological disorder characterized by recurrent seizures. Multiple sclerosis is a chronic autoimmune disease that affects the central nervous system. In this case, the correct answer is 'Syncope' as it directly relates to the temporary loss of consciousness due to decreased blood flow to the brain, distinguishing it from the other options which involve different conditions affecting the nervous system.