DrJohnson Hypothesizes That NutraSweet Reduces Short-Term Memory

question 37

Multiple Choice

Dr.Johnson hypothesizes that NutraSweet reduces short-term memory.In order to test her hypothesis she gives 10 subjects a beverage containing NutraSweet (treatment group) and 10 subjects a beverage without NutraSweet (control group) .She then measures the subject's ability to recall a list of numbers.Dr.Johnson's dependent variable is measured using _____scale of measurement.

• A)nominal
• B)interval
• C)ordinal
• D)ratio
• E)None of these

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