Chapter 1: Why is my evil lecturer forcing me to learn statistics?

Chapter 1: Why is my evil lecturer forcing me to learn statistics?

• A café owner decided to calculate how much revenue he gained from lattes each month. What type

of variable would the amount of revenue gained from lattes be?

• categorical
• discrete
• nominal
• continuous

Ans: D

• A café owner wanted to compare how much revenue he gained from lattes across different months

of the year. What type of variable is ‘month’?

• continuous
• categorical
• dependent
• interval

Ans: B

• Which of the following best describes a confounding variable?
• A variable that affects the outcome being measured as well as, or instead of, the independent

variable.

• A variable that is manipulated by the experimenter.
• A variable that has been measured using an unreliable scale.
• A variable that is made up only of categories.

Ans: A

4. A demand characteristic is:

• A personality trait that makes a participant likely to find an experiment too demanding.
• When a person responds in an experiment in a way that is consistent with their beliefs about how

the experimenter would like them to behave.

• When the experimenter’s behaviour affects the results of an experiment.
• A personality trait that affects the results of an experiment in an undesirable way.

Ans: B

• If a test is valid, what does this mean?
• The test will give consistent results.
• The test has internal consistency.
• The test measures a useful construct or variable.
• The test measures what it claims to measure.

Ans: D

• When questionnaire scores predict or correspond with external measures of the same construct

that the questionnaire measures it is said to have:

(Discovering Statistics using IBM SPSS Statistics, 5e Andy Field) (Test Bank) (For Complete File, Download link at the end of this File) 1 / 3

• Ecological validity
• Content validity
• Criterion validity
• Factorial validity

Ans: C

• When the results of an experiment can be applied to real-world conditions, that experiment is said

to have:

• Ecological validity
• Factorial validity
• Content validity
• Criterion validity

Ans: A

8. A variable manipulated by a researcher is known as:

• A discrete variable
• An independent variable
• A dependent variable
• A confounding variable

Ans: B

• A variable that measures the effect that manipulating another variable has is known as:
• A predictor variable
• An independent variable
• A dependent variable
• A confounding variable

Ans: C

10. A predictor variable is another name for:

• An independent variable
• A dependent variable
• A confounding variable
• A discrete variable

Ans: A

• The discrepancy between the numbers used to represent something that we are trying to measure

and the actual value of what we are measuring is called:

• Reliability
• The ‘fit’ of the model
• Variance
• Measurement error

Ans: D

• What kind of variable is IQ, measured by a standard IQ test? 2 / 3

• Nominal
• Continuous
• Categorical
• Discrete

Ans: B

• A frequency distribution in which low scores are most frequent (i.e. bars on the graph are highest

on the left hand side) is said to be:

• Positively skewed
• Leptokurtic
• Platykurtic
• Negatively skewed

Ans: A

• A frequency distribution in which high scores are most frequent (i.e. bars on the graph are highest

on the right hand side) is said to be:

• Leptokurtic
• Platykurtic
• Negatively skewed
• Positively skewed

Ans: C

• A frequency distribution in which there are too many scores at the extremes of the distribution

said to be:

• Positively skewed
• Leptokurtic
• Negatively skewed
• Platykurtic

Ans: D

• A frequency distribution in which there are too few scores at the extremes of the distribution said

to be:

• Leptokurtic
• Positively skewed
• Platykurtic
• Negatively skewed

Ans: A

• Which of the following is designed to compensate for practice effects?
• Giving participants a break between tasks
• A control condition
• Counterbalancing
• A repeated measured design

Ans: C

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