Psych 1301 Exam 1 Cohn with Complete
Solutions
Which of the following is a good research hypothesis? - ANSWER-Aggressive behavior
increases as exposure to violent video games increases
What is the purpose of random assignment? - ANSWER-Random assignment reduces
systematic bias between participants in the experimental and control groups in a search
study
Robert Rosenthal administered a 'Blooming IQ test' to elementary school children.
Children who were identified as 'bloomers' showed significantly greater gains in IQ
scores at the end of the school year compared to children who were not identified as
'bloomers'. These findings were subject to which experimental confound? - ANSWER-
Expectancy effects
I want to study the effectiveness of a new anti-depressant medication. I recruit 100
depressed individuals into my study. 50 participants receive the new anti-depressant
medication and 50 participants receive a placebo. Two weeks later my research
assistants assessed the depression level of each participant. Neither the participants
nor the research assistants knew which participants received the anti-depressant
medication. This study illustrates a - ANSWER-Double blind research design
Hundreds of studies have investigated the impact of T.V. violence on aggressive
behavior in children. Results of the studies support the conclusion that - ANSWER-
Viewing T.V. violence does increase aggressive behavior in children
An investigation tested the following hypothesis: "As age increases, intellectually ability
decreases". The investigator recruited 50 males and 50 females to participate in the
study. Participants were recruited from New York, El Paso, and Los Angeles. What was
the dependent variable in the above study? - ANSWER-Intellectual ability
An investigator tests the following hypothesis: "As exposure to T.V. violence increases,
aggressive behavior in children increases". What is the independent variable? -
ANSWER-Amount of T.V. violence viewed by children
"Psychology is formally defined as the scientific study of - ANSWER-Behavior and metal
processess
, For centuries philosophers debated whether an individual's behavior was mainly the
product of 'inborn tendencies' or the product of 'environmental forces'. This debate is
known as the - ANSWER-Nature vs. Nurture debate
Who developed the first research laboratory in psychology? - ANSWER-Wilhelm Wundt
Neutral signals within a single neuron travel from the - ANSWER-Dendrites to the cell
body to the axon
An axon is - ANSWER-The extension of a neuron that carries messages away from the
cell body
Neurotransmitters are - ANSWER-Chemical messengers
Motor neurons send information from - ANSWER-The central nervous system to
muscles. causing them to relax or contract
The junction or point of communication between two neurons is called - ANSWER-A
synapse
The fatty substance that surrounds some axons is called - ANSWER-Myelin
Kim is a patient in the hospital recovering from a bad car crash in which her head was
badly hurt. Her mom visits Kim in her hospital room. Surprisingly, Kim insists that the
woman visitor is not her real mother but an impostor! Kim may be suffering from -
ANSWER-Capgras syndrome
Which of the following are neurotransmitters? - ANSWER-Dopamine, Serotonin, and
Acetycholine
Dendrites - ANSWER-Short fibers that receive neural messages from neighboring
neurons
The central nervous system consists of - ANSWER-The brain and spinal cord
Axons are sometimes surrounded by (encased in) a myelin sheath. The myelin sheath
insulates nerve impulses and also - ANSWER-Speeds up neural impulses
Alicia reports seeing the color red every time she hears the C-minor on the piano. Alicia
most likely suffers from - ANSWER-Synesthesia
Hypothesis - ANSWER-a tentative statement about the relationship between two or
more variables (this is a statement, not a question)
Variable - ANSWER-Any phenomenon or stimulus that can vary in value
Solutions
Which of the following is a good research hypothesis? - ANSWER-Aggressive behavior
increases as exposure to violent video games increases
What is the purpose of random assignment? - ANSWER-Random assignment reduces
systematic bias between participants in the experimental and control groups in a search
study
Robert Rosenthal administered a 'Blooming IQ test' to elementary school children.
Children who were identified as 'bloomers' showed significantly greater gains in IQ
scores at the end of the school year compared to children who were not identified as
'bloomers'. These findings were subject to which experimental confound? - ANSWER-
Expectancy effects
I want to study the effectiveness of a new anti-depressant medication. I recruit 100
depressed individuals into my study. 50 participants receive the new anti-depressant
medication and 50 participants receive a placebo. Two weeks later my research
assistants assessed the depression level of each participant. Neither the participants
nor the research assistants knew which participants received the anti-depressant
medication. This study illustrates a - ANSWER-Double blind research design
Hundreds of studies have investigated the impact of T.V. violence on aggressive
behavior in children. Results of the studies support the conclusion that - ANSWER-
Viewing T.V. violence does increase aggressive behavior in children
An investigation tested the following hypothesis: "As age increases, intellectually ability
decreases". The investigator recruited 50 males and 50 females to participate in the
study. Participants were recruited from New York, El Paso, and Los Angeles. What was
the dependent variable in the above study? - ANSWER-Intellectual ability
An investigator tests the following hypothesis: "As exposure to T.V. violence increases,
aggressive behavior in children increases". What is the independent variable? -
ANSWER-Amount of T.V. violence viewed by children
"Psychology is formally defined as the scientific study of - ANSWER-Behavior and metal
processess
, For centuries philosophers debated whether an individual's behavior was mainly the
product of 'inborn tendencies' or the product of 'environmental forces'. This debate is
known as the - ANSWER-Nature vs. Nurture debate
Who developed the first research laboratory in psychology? - ANSWER-Wilhelm Wundt
Neutral signals within a single neuron travel from the - ANSWER-Dendrites to the cell
body to the axon
An axon is - ANSWER-The extension of a neuron that carries messages away from the
cell body
Neurotransmitters are - ANSWER-Chemical messengers
Motor neurons send information from - ANSWER-The central nervous system to
muscles. causing them to relax or contract
The junction or point of communication between two neurons is called - ANSWER-A
synapse
The fatty substance that surrounds some axons is called - ANSWER-Myelin
Kim is a patient in the hospital recovering from a bad car crash in which her head was
badly hurt. Her mom visits Kim in her hospital room. Surprisingly, Kim insists that the
woman visitor is not her real mother but an impostor! Kim may be suffering from -
ANSWER-Capgras syndrome
Which of the following are neurotransmitters? - ANSWER-Dopamine, Serotonin, and
Acetycholine
Dendrites - ANSWER-Short fibers that receive neural messages from neighboring
neurons
The central nervous system consists of - ANSWER-The brain and spinal cord
Axons are sometimes surrounded by (encased in) a myelin sheath. The myelin sheath
insulates nerve impulses and also - ANSWER-Speeds up neural impulses
Alicia reports seeing the color red every time she hears the C-minor on the piano. Alicia
most likely suffers from - ANSWER-Synesthesia
Hypothesis - ANSWER-a tentative statement about the relationship between two or
more variables (this is a statement, not a question)
Variable - ANSWER-Any phenomenon or stimulus that can vary in value
