Sapna Is Interested in the Influence of Nutrition on Reaction

question 69

Multiple Choice

Sapna is interested in the influence of nutrition on reaction time.She assigns participants to eat a salad and fruit for dinner every day for a week or to eat fast food each day.She then brings participants into the lab and asks them to push a button on a keyboard as fast as they can every time they hear a particular sound.What are the operational definitions of the variables in Sapna's study?

• A) Nutrition; whether participants eat a salad or fast food
• B) Nutrition; reaction time
• C) Whether participants eat salad or fast food; reaction time
• D) Whether participants eat salad or fast food; how quickly they push the button when they hear the sound

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Definitions:

C-level PMI

C-level PMI typically refers to high-level preventive maintenance inspections conducted by chief or senior personnel to ensure operational integrity.

FMVSS 121

Legislation that defines minimum standards for all highway operated air brake equipment.

System Pressure

Usually refers to the range of pneumatic circuit pressures between cut-out and cut-in pressure values in an FMVSS 121–compliant air brake system. Can refer to other fluid power circuit pressures such as those in transmission hydraulics and engine lube circuits.