which of the following is false regarding the use of qualitative and quantitative data in scientific research
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ATI TEAS 7

Science TEAS Practice Test

1. Which of the following statements is FALSE regarding the use of qualitative and quantitative data in scientific research?

Correct answer: B

Rationale: The correct answer is B because quantitative data is not inherently more accurate than qualitative data. Both types of data have their strengths and limitations, and the choice of data type depends on the research question and methodology. Quantitative data is collected through numerical measurements and involves statistical analysis. On the other hand, qualitative data focuses on perspectives, behaviors, and meanings and is typically gathered through observation and interviews. While quantitative data provides numerical precision, qualitative data offers in-depth insights into behaviors and perspectives that cannot be quantified, making them equally valuable in scientific research.

2. Which of the following statements regarding the microscopic anatomy of heart muscle is correct?

Correct answer: D

Rationale: The correct answer is D, 'All of the above.' Cardiac muscle is indeed striated, short, fat, branched, and interconnected. Intercalated discs are responsible for anchoring cardiac cells together and allowing the free passage of ions. Additionally, the connective tissue endomysium provides structural support and acts as a tendon-like structure attaching muscle fibers to each other. Therefore, all the statements in choices A, B, and C are accurate when describing the microscopic anatomy of heart muscle. Choices A, B, and C individually represent different aspects of the structural features of cardiac muscle, making choice D the most comprehensive and correct answer.

3. Which of the following describes a proportional relationship?

Correct answer: A

Rationale: A proportional relationship is one in which two quantities vary directly with each other. In choice A, the amount deposited per month is directly proportional to the initial deposit. The relationship can be represented as y = 125x + 150, where x is the number of months and y is the total amount in the account. Choices B and C involve additional fixed amounts or variable costs that do not maintain a constant ratio, making them non-proportional relationships. Choice D refers to a constant speed of driving, which is not a proportional relationship as it does not involve varying quantities that change in direct proportion.

4. How many kilograms are in 1,800 grams?

Correct answer: B

Rationale: To convert grams to kilograms, divide by 1,000 since there are 1,000 grams in a kilogram. Therefore, 1,800 grams is equal to 1.8 kilograms (1,800 / 1,000 = 1.8). Choice A (0.18) is incorrect because it incorrectly shifted the decimal point. Choice C (18) is incorrect as it represents the direct conversion without dividing by 1,000. Choice D (180) is incorrect as it is in the hundreds and not the correct conversion to kilograms. The correct answer is B.

5. Which of the following best describes the process of osmosis?

Correct answer: B

Rationale: The correct answer is B. Osmosis is the process where water moves across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration. Choice A is incorrect because osmosis does not involve movement against the concentration gradient. Choice C is incorrect because osmosis primarily involves the movement of water, not water and solutes together. Choice D is incorrect as osmosis specifically refers to the movement of water molecules, not large molecules, through a membrane.

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