Quiz 1 Basics of Research EDCO 735 Statistics
Question 1
3/ 3pts
Which of the following is probably the most helpful guide when untangling the relationship
between X and Y?
Correct!
having a rational theory
statistics
causality
tables and graphs
Question 2
3/ 3pts
What type of research compares naturally formed or preexisting groups rather than employing
random assignment to conditions?
Correct!
quasi-experimental research
survey research
observational research
archival research
Question 5
3/ 3pts
Assigning individuals to groups based on a variable related to (i.e., may covary with the
dependent variable) the study variable of interest is:
Correct!
matching
random assignment
random sampling
convenience sampling
Question 6
3/ 3pts
A stratified sample is a form of:
Correct!
random sampling
non-probability sampling
haphazard sampling
convenience sampling
Question 7
3/ 3pts
If an extraneous variable is associated with the independent variable and affects the outcome of
the dependent variable, it is considered a:
Correct!
confounding variable
temporal precedence
outcome variable
an independent variable
Question 8
3/ 3pts
Which element is NOT typically included in a well-designed behavioral experiment?
Correct!
uncontrolled variables
treatment or intervention
random assignment
internal validity
Question 9
3/ 3pts
If a researcher employs a convenience sample, we can safely apply it to a hypothetical
population if the:
Correct!
sample approximates a poulation in terms of meaningful characteristics
sample has the same number of men as women
sample was recruited in the same geography of the population
sample was made up of college students
Question 10
3/ 3pts
What does it mean that there must be a reasonable theory for causal inference?
Correct!
researchers must be able to explain why they believe the relationship makes sense
the theory must meet the Pearson standard
researchers must be able to explain every variable that changes the outcome variable
the relationship must be previously documented in published literature
Quiz Score:30out of 30
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