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FNES 720 Pre-Assessment Flashcards | StudBud
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FNES 720 Pre-Assessment
FNES 720 Pre-Assessment
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Questions
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Answers
1
What is a treatment group in research?
A research subject is an individual that participates in research
A subset of individuals from a larger population
A group contains participants who do not receive the experimental treatment
A group in an experimental study that receives the experimental treatment
2
A "Type I Error" occurs if an investigator rejects a null hypothesis that is actually true in the population.
False
True
3
What is the characteristic of categorical variables?
A quantifiable characteristic whose values are numbers
A characteristic that can't be quantifiable
Such things as speed and distance
A measurable quantity as a number
4
What does sampling mean in statistics?
Selecting the group that you will actually collect data for your research
To separate into two or more parts, areas, or groups
A measure of variation or dispersion between values in a set of data
Studious inquiry or examination
5
What is a central tendency?
Methods used to summarize and describe the main features of a dataset
A statistical test that was developed by Ronald Fisher in 1918
A central or typical value for a probability distribution
A method to find the relationship between two or more variables
6
The p-value measures the probability of observing a value as extreme as the one observed or more extreme.
False
True
7
A "Type II Error" occurs if the investigator fails to reject a null hypothesis that is actually false in the population.
False
True
8
________ is a statistical measure that describes the size and direction of a relationship between two or more variables.
T-test
MANCOVA
ANOVA
Correlation
9
Which of the following is not a measure of central tendency?
Mean
Mode
Median
Standard deviation
10
What is the main difference between quantitative and qualitative research?
Participants' occupation
Period of research
Data type
Researcher's age
11
What does convenience sampling mean?
A portion drawn from the population
The entire realm of people/data that could be measured or counted
All members of a group
Recruit whoever is readily available and willing
12
In statistics, the ___________ is a measure of the amount of variation or dispersion of a set of values.
Standard deviation
Mode
Mean
P-value
13
Which of the following is not the goal of descriptive statistics?
Summarizing data
Displaying aspects of the collected data
Calculating measures of central tendency and variability
Finding the relationship between two or more variables
14
What is T-test?
A mutual relationship or connection between two or more things
A statistical test that is used to compare the means of two groups
A multivariate method used to examine relationships among latent attributes
A statistical method to find the relationship between two or more variables
15
The ___________ is the claim that no relationship exists between two sets of data or variables being analyzed.
null hypothesis
p-value
alternative hypothesis
sampling error
16
An alternative hypothesis is a statement in which there is some statistical relationship between the two variables.
True
False
17
What is a control group in research?
A subset of individuals from a larger population
A research subject is an individual that participates in research
A group in an experimental study that receives the experimental treatment
A group contains participants who do not receive the experimental treatment
18
What are descriptive statistics?
The standard deviation of a sample population
Methods to find the relationship between two or more variables
A combination of an ANOVA and a regression analysis
Methods used to summarize and describe the main features of a dataset
19
What is the purpose of statistics in research?
To collect, analyze, and arrange numerical data
To generate new concepts
To test theory
To deepen our understanding of a phenomenon
20
What is an example of a categorical variable?
Race
Temperature
Speed
Length
