WorksheetsUnit 2: Research Methods
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Which correlation coefficients represents the strongest relationship between two variables?
a)
+4.0
b)
+7.0
c)
+1.3
d)
-8.5
2.
Which of the following is only used in correlation studies?
a)
Placebo
b)
Scatter Plots
c)
Double-Blind
d)
Random Sample
3.
Which of the following is the most frequently occurring score in a distribution?
a)
Mean
b)
Range
c)
Mode
d)
Median
4.
Which statistical measure of central tendency is most affected by extreme scores?
a)
Mode
b)
Mean
c)
Range
d)
Median
5.
Which of the following is a measure of variation?
a)
Mean
b)
Mode
c)
Range
d)
Median
6.
In normal distribution, what percentage of scores re one standard deviation + or - of the mean?
a)
34%
b)
50%
c)
60%
d)
68%
7.
What method should a researcher use to test if rewards cause students to behave better?
a)
Case Study
b)
Survey
c)
Experiment
d)
Naturalistic Observation
8.
When a distribution of scores is skewed, which most represents a measure of central tendency?
a)
Median
b)
Range
c)
Standard Deviation
d)
Mean
9.
A scientist's willingness to admit she is wrong is an example of?
a)
Curiosity
b)
Skepticism
c)
Humility
d)
Cynisism
10.
A testable prediction that drives research is known as?
a)
Theory
b)
Hypothosis
c)
Guess
d)
Operational Definition
11.
Which of the following is the most important when conducting survey research?
a)
Choosing a representative sample
b)
Choosing a biased sample
c)
Choosing a large sample
d)
Choosing a sample that includes all of the population
12.
Which of the following is an example of a confounding variable?
a)
Debreifing
b)
Hypothesis
c)
Placebo Effect
d)
Scatter Plots
13.
Which ethical principle requires that at the end of the study, participants be told the purpose?
a)
Informed consent
b)
Hypothesis
c)
Confidentiality
d)
Debriefing
14.
In applied research which of the following is not true when using this type of research?
a)
Clear applications
b)
You can use it
c)
Practical applications
d)
Explores questions you may be curious about
15.
The more years of schooling you have a higher income.
a)
Positive Correlation
b)
Negative Correlation
16.
Cars that are heavier tend to get less miles per gallon of gas.
a)
Positive correlation
b)
Negative correlation
17.
People who tend to miss more days of school tend to have lower GPA's.
a)
Positive correlation
b)
Negative correlation
18.
As a chicken gets older, they tend to lay fewer eggs.
a)
Positive correlation
b)
Negative correlation
19.
People who experience more stress in their work lives tend to have more sick days.
a)
Positive correlation
b)
Negative correlation
20.
Students with higher GPA are those who perform better on the ACT.
a)
Positive correlation
b)
Negative correlation
21.
What do we call the tendency to exaggerate on our beliefs prior to testing?
a)
Hindsight bias
b)
Skepticism
c)
Overconfidence
d)
Critical thinking
22.
Why is an operational definition necessary when reporting research findings?
a)
It allows others to replicate the procedure
b)
Uses more scientific language than the dictionary definition
c)
It provides more context and many exampls of the concept
d)
Easier to translate in multiple languages than a definition
23.
Which correlation coefficient shows the weakest relationship?
a)
-7.5
b)
+1.2
c)
-9.5
d)
-.09
24.
What descriptive statistic will a researcher describe a student's SAT is to a schools SAT score.
a)
Correlational coefficient
b)
Standard deviation
c)
Mean
d)
Median
25.
Scatter plot graphs are primarily used for?
a)
To find cause and effect
b)
Find how two variables do not have a relationship
c)
show hindsight bias in research
d)
To determine a positive relationship between two variables
100 %
