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Research Methods in Education -RES-70404-Week-4 Flashcards | StudBud
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Research Methods in Education -RES-70404-Week-4
Research Methods in Education -RES-70404-Week-4
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1
What does the term "standard deviation" represent in a dataset?
The difference between the largest and smallest value
The average distance of each value from the mean
The total number of data points
The total sum of all values
2
What is the primary purpose of quantitative methods in research?
To analyze data numerically
To collect data through interviews
To interpret textual data
To understand human behavior
3
The range of a dataset is:
The average of the values in the dataset
The difference between the highest and lowest values
The square root of the variance
The most frequent value
4
Which of the following is a characteristic of a probability distribution?
It shows how data is distributed across different values
It provides a range of data values
It is not used in hypothesis testing
It only applies to qualitative data
5
What is the primary difference between descriptive statistics and inferential statistics?
Descriptive statistics are only used with qualitative data
Descriptive statistics summarize , while inferential statistics generalize
inferential statistics only work with small samples
There is no difference; both are used to describe data
6
What does the "mean" represent in a dataset?
The value that occurs most frequently
The difference between the largest and smallest values
The middle value when the data are ordered
The sum of all values divided by the number of values
7
What is the purpose of regression analysis?
To test the hypothesis
To predict the value of one variable based on another
To calculate the variance
To summarize data
8
In hypothesis testing, what is the null hypothesis typically assumed to be?
A precondition for conducting a test
The statement of no effect or no difference
The hypothesis that must always be true
The opposite of the alternative hypothesis
9
The term "sample" refers to:
The average value of a dataset
The number of participants in a study
A subset of the population being studied
The entire population being studied
10
What is an "outlier" in quantitative data analysis?
A value that falls far outside the expected range of data
A value that occurs most frequently in the dataset
A value that is closer to the median than the mean
A value that is exactly the mean of the data
11
What does the correlation coefficient measure?
The spread of the dataset
The relationship between two variables
The frequency of the mode
The mean of the dataset
12
What is the most common method used for analyzing relationships between two continuous variables?
Chi-square test
T-test
Regression analysis
Correlation analysis
13
The median of a dataset is:
The most common value
The sum of all values divided by the number of values
The middle value when the data is ordered
The highest value
