Psych 1301 Exam 1 COHN Questions
and Answers
Which of the following is a good research hypothesis? - ANS-Aggressive behavior
increases as exposure to violent video games increases
What is the purpose of random assignment? - ANS-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? - ANS-
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 - ANS-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 - ANS-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? - ANS-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? - ANS-
Amount of T.V. violence viewed by children
"Psychology is formally defined as the scientific study of - ANS-Behavior and metal
processess
