Chapter 2 How Psychologists Do Research
Chapter 2 How Psychologists Do Research
Question
171) Ideally, everything in the experimental situation EXCEPT the ________ is held constant.
A) inferential statistic
B) hypothesis
C) independent variable
D) placebo
172) Ideally, everything in the experimental situation EXCEPT the ________ is held constant.
A) reaction of the subjects
B) presumed effect
C) dependent variable
D) independent variable
173) One of the variables in a research study is chocolate. Chocolate:
A) would be an independent variable.
B) would be a placebo.
C) would be a dependent variable.
D) may be either an independent or dependent variable.
174) A researcher wants to know whether eating chocolate makes people nervous. The amount of chocolate eaten:
A) would be a placebo.
B) would be a dependent variable.
C) would be an independent variable.
D) may be either an independent or dependent variable.
175) A researcher wants to know whether eating chocolate makes people nervous. The amount of chocolate eaten would be the:
A) independent variable.
B) operational definition.
C) criterion validity.
D) inferential statistic.
176) A researcher wants to know whether feeling nervous makes people eat chocolate. The amount of chocolate eaten:
A) would be an independent variable.
B) would be a placebo.
C) would be a dependent variable.
D) may be either an independent or dependent variable.
177) Professor Marshall wants to know if eating sweets for a bedtime snack makes children active. In his study, sweets before bedtime would be:
A) the independent variable.
B) the placebo.
C) the dependent variable.
D) the control condition.
178) A researcher plans to investigate whether a cup of hot milk at night helps people relax so that they fall asleep quickly. In this study,
A) the control group consists of the subjects drinking hot milk at bedtime.
B) experimenter effects will occur unless the researcher improves the hypothesis.
C) the independent variable is the consumption of hot milk at bedtime.
D) the independent variable is the amount of time it takes the person to fall asleep.
179) A research hypothesis proposes that consuming low-carbohydrate diets results in increased weight loss. One group of people follows a low-carb diet for three weeks, while a second group follows a high-carb diet containing the same number of calories for three weeks. The average number of pounds lost per person is compared. What is the dependent variable?
A) number of pounds lost
B) the amount of carbs in each diet
C) the number of calories in each diet
D) length of time on the diet
180) A research hypothesis proposes that consuming low-carbohydrate diets results in increased weight loss. One group of people follows a low-carb diet for three weeks, while a second group follows a high-carb diet containing the same number of calories for three weeks. The average number of pounds lost per person is compared. What is the independent variable?
A) the amount of carbs in each diet
B) the number of calories in each diet
C) number of pounds lost
D) length of time on the diet
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Chapter 2 How Psychologists Do Research
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