Multiple Choice
Which of the following shows the best order of steps of the scientific method?
1. Matter and Measurements
The Scientific Method
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Which of the following statements represents an observation?
A
Repeated studies show that lowering sodium in one's diet will lead to a decrease in blood pressure.
B
During an assessment in the doctor's office, the nurse records that the patient's resting pulse as 32 beats per minute.
C
A doctor believes that an incision during made during surgery that is red and pulsating is infected.
D
A patient believes they are allergic to povidone-iodine and an alternate antiseptic must be used before surgery.
Verified step by step guidance1
Understand the definition of an observation: In scientific terms, an observation is a statement based on something that is directly seen, heard, or measured, without interpretation or assumption.
Analyze each statement to determine if it is an observation: Look for statements that describe a direct measurement or sensory experience.
Evaluate the first statement: 'Repeated studies show that lowering sodium in one's diet will lead to a decrease in blood pressure.' This is a conclusion drawn from studies, not a direct observation.
Evaluate the second statement: 'During an assessment in the doctor's office, the nurse records that the patient's resting pulse as 32 beats per minute.' This is a direct measurement and thus qualifies as an observation.
Evaluate the remaining statements: The third statement involves a doctor's belief, and the fourth involves a patient's belief, both of which are interpretations or assumptions, not direct observations.
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