Descriptive and Inferential Statistics
A _________ is a graphical representation of association between variables. - a. scatterplot
A histogram is a type of frequency __________. - c. distribution
A nondirectional alternative hypothesis claims that no difference will be found between the
research variables. - F
A researcher may use a two-tailed test to evaluate a directional hypothesis. - T
A researcher wanting to determine if amount of hours sleeping was related to one's attitude
would evaluate the research study using __________ analysis. - c. correlation
A specific factor having a range of possible values is a __________. - a. variable
Correlational research results depicting a correlation coefficient of 0.5 means that the associated
variables demonstrate a __________ relationship. - b. moderately positive
Descriptive statistics is used in order to analyze the relationship between variables. - F
If Emma received a standard score on a test that was ranked in the 82nd percentile, it indicates
that __________. - b. 82% of students scored lower than Emma
In a normal distribution, the mean, median, and mode are the same value. - T
Inferential statistics allows a researcher to make inferences about a specific population based on
data taken from a sample. - T
Statistics used to analyze sample data in order to make conclusions about a population are called
__________ statistics. - c. inferential
Subtracting the lowest score in a data set from the highest is the appropriate way to calculate the
__________. - a. range
The average value of a given set of data is the mode. - F
The range and standard deviation of a distribution are __________. - b. measures of variability
The range of a set of data scores is determined by subtracting the lowest score from the highest. -
T
Which of the following is not commonly studied in psychology? - d. human origins
A _________ is a graphical representation of association between variables. - a. scatterplot
A histogram is a type of frequency __________. - c. distribution
A nondirectional alternative hypothesis claims that no difference will be found between the
research variables. - F
A researcher may use a two-tailed test to evaluate a directional hypothesis. - T
A researcher wanting to determine if amount of hours sleeping was related to one's attitude
would evaluate the research study using __________ analysis. - c. correlation
A specific factor having a range of possible values is a __________. - a. variable
Correlational research results depicting a correlation coefficient of 0.5 means that the associated
variables demonstrate a __________ relationship. - b. moderately positive
Descriptive statistics is used in order to analyze the relationship between variables. - F
If Emma received a standard score on a test that was ranked in the 82nd percentile, it indicates
that __________. - b. 82% of students scored lower than Emma
In a normal distribution, the mean, median, and mode are the same value. - T
Inferential statistics allows a researcher to make inferences about a specific population based on
data taken from a sample. - T
Statistics used to analyze sample data in order to make conclusions about a population are called
__________ statistics. - c. inferential
Subtracting the lowest score in a data set from the highest is the appropriate way to calculate the
__________. - a. range
The average value of a given set of data is the mode. - F
The range and standard deviation of a distribution are __________. - b. measures of variability
The range of a set of data scores is determined by subtracting the lowest score from the highest. -
T
Which of the following is not commonly studied in psychology? - d. human origins
