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Unit 2 Review
Test Description: Research Methods
Instructions: Answer all questions to get your test result.
1) which of the following research methods does not permit researches to draw conclusions regarding cause-and-effect relationships?
A
Correlational research
B
surverys
C
Experimental
D
Case studies
2) A random sample can best be defined
A
a sample that is carefully chosen so the characteristics of participants correspond to the larger population
B
a selection of cases from a larger population
C
a sample in which each potential participant has an equal chance of being selected
D
a selection of cases from the control group
3) the observation in a classroom that the higher the room temperature, the lower student performance would be an example of :
A
zero correlation
B
independent correlation
C
positive correlation
D
negative correlation
4) in an experiment, Sydney is going to investigate how alcohol affects aggression: The number of alcoholic drinks the subject has in called:
A
independent variable
B
experimental variable
C
Controlled variable
D
dependent variable
5) If a researcher is trying to establish a causal relationship between eating breakfast and work performance, the researcher should use which of the following methods of research?
A
survey
B
correlational research
C
case study
D
experimental research
6) The I-knew-it-all-along bias is also called:
A
placebo
B
hindsight bias
C
controls
D
random assignment
7) Statement of procedures (operations) used to define research variables (procedures)
A
ethics
B
correlational research
C
case study
D
operational definitions
8) When someone is told something and believes this something during the experiment which causes them to act like this something even if the something never existed
A
statistical significance
B
placebo effect
C
hindsight bias
D
ethics
9) Statistical statement of how likely it is that an obtained result occurred by chance
A
standard deviation
B
statistical significance
C
hindsight bias
D
placebo effect
10) When both participants and experimenter don't know who's in the experimental group or control group
A
random assignment
B
hindsight bias
C
deviation
D
double-blind procedure
*select an answer for all questions
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