PSYCHOLOGY CHAPTER #1-5 EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS
A lopsided set of scores that includes a number of extreme or unusual values is said to
be - Answer-Skewed
A psychologist studies the play behavior of young children by watching groups during
recess at school. Which type of research is being used? - Answer-Naturalist observation
After detailed study of a gunshot wound victim, a psychologist concludes that the brain
region destroyed is likely to be important for memory function. What type of research did
the psychologist use to deduce this? - Answer-the case study
If shoe size and IQ are negatively correlated, which of the following is true?
A. People with large feet tend to have high IQs.
B. People with small feel tend to have high IQs.
C. People with small feet tend to have low IQs.
D. IQ is unpredictable based on a person's shoe size - Answer-B. People with small feet
tend to have High IQs
In an experiment to determine the effects of exercise on motivation, exercise is the -
Answer-Independent variable
Juwan eagerly opened on online trading account, believing that his market savvy would
allow him to pick stocks that would make him a rich day trader. This belief best
illustrates - Answer-Overconfidence
Psychologists' personal values... - Answer-can bias both scientific observation and
interpretation of data.
The scientific attitude of skepticism is based on the belief that... - Answer-Ideas need to
be tested against observable evidence
Theories are defined as.. - Answer-Principles that help to organize observation and
predict behaviors or events.
To determine the effects of a new drug on memory, one group of people is given a pill
that contains the drug. A second group is given a sugar pill that does not contain the
drug. This second group constitutes the - Answer-Control group
To ensure that other researchers can repeat their work, psychologists use... - Answer-
operational definitions
, Well-done surveys measure attitudes in a representative subset, or ________, of an
entire group, or ________. - Answer-Random sample; population
What is the mean of the following distribution of scores: 2, 3, 7, 6, 1, 4, 9, 5, 8, 2? -
Answer-4.7
What is the median of the following distribution of scores: 1, 3, 7, 7, 2, 8, 4? - Answer-4
What is the mode of the following distribution: 8, 2, 1, 1, 3, 7, 6, 2, 0, 2? - Answer-2
When a difference between two groups is statistically significant, this means that -
Answer-the difference is not likely to be due to chance variation
Which of the following is important when generalizing from a sample to the population? -
Answer-All the above:
1. the sample be a representative of the population
2. the sample be large
3. the sores in the sample have low variability
Which of the following is NOT a basic research technique used by psychologists?
A. description
B. Replication
c. Experimentation
D. Correlation - Answer-Replication
Which of the following is the measure of central tendency that would be most affected
by a few extreme scores?
A. mean
B. Range
C. Median
D. Mode - Answer-Mean
Which of the following would be best for determining whether alcohol impairs memory?
A. Case study
B. Naturalistic observation
C. Survey
D. Experiment - Answer-Experiment
A neuron will generate action potentials when it - Answer-receives more excitatory than
inhibitory inputs
A strong stimulus can increase the - Answer-number of times the neuron fires
QUESTIONS WITH COMPLETE
SOLUTIONS
A lopsided set of scores that includes a number of extreme or unusual values is said to
be - Answer-Skewed
A psychologist studies the play behavior of young children by watching groups during
recess at school. Which type of research is being used? - Answer-Naturalist observation
After detailed study of a gunshot wound victim, a psychologist concludes that the brain
region destroyed is likely to be important for memory function. What type of research did
the psychologist use to deduce this? - Answer-the case study
If shoe size and IQ are negatively correlated, which of the following is true?
A. People with large feet tend to have high IQs.
B. People with small feel tend to have high IQs.
C. People with small feet tend to have low IQs.
D. IQ is unpredictable based on a person's shoe size - Answer-B. People with small feet
tend to have High IQs
In an experiment to determine the effects of exercise on motivation, exercise is the -
Answer-Independent variable
Juwan eagerly opened on online trading account, believing that his market savvy would
allow him to pick stocks that would make him a rich day trader. This belief best
illustrates - Answer-Overconfidence
Psychologists' personal values... - Answer-can bias both scientific observation and
interpretation of data.
The scientific attitude of skepticism is based on the belief that... - Answer-Ideas need to
be tested against observable evidence
Theories are defined as.. - Answer-Principles that help to organize observation and
predict behaviors or events.
To determine the effects of a new drug on memory, one group of people is given a pill
that contains the drug. A second group is given a sugar pill that does not contain the
drug. This second group constitutes the - Answer-Control group
To ensure that other researchers can repeat their work, psychologists use... - Answer-
operational definitions
, Well-done surveys measure attitudes in a representative subset, or ________, of an
entire group, or ________. - Answer-Random sample; population
What is the mean of the following distribution of scores: 2, 3, 7, 6, 1, 4, 9, 5, 8, 2? -
Answer-4.7
What is the median of the following distribution of scores: 1, 3, 7, 7, 2, 8, 4? - Answer-4
What is the mode of the following distribution: 8, 2, 1, 1, 3, 7, 6, 2, 0, 2? - Answer-2
When a difference between two groups is statistically significant, this means that -
Answer-the difference is not likely to be due to chance variation
Which of the following is important when generalizing from a sample to the population? -
Answer-All the above:
1. the sample be a representative of the population
2. the sample be large
3. the sores in the sample have low variability
Which of the following is NOT a basic research technique used by psychologists?
A. description
B. Replication
c. Experimentation
D. Correlation - Answer-Replication
Which of the following is the measure of central tendency that would be most affected
by a few extreme scores?
A. mean
B. Range
C. Median
D. Mode - Answer-Mean
Which of the following would be best for determining whether alcohol impairs memory?
A. Case study
B. Naturalistic observation
C. Survey
D. Experiment - Answer-Experiment
A neuron will generate action potentials when it - Answer-receives more excitatory than
inhibitory inputs
A strong stimulus can increase the - Answer-number of times the neuron fires
