Quantitative Research 1: Examples and Explanations

Quantitative research 1 1
RSM701
Quantitative Research I
Student name:
Tutor name:

Quantitative research 1 2
a. George is interested in how four kinds of nutrition supplements
effect body builders’ weight loss.
Sample: body builders
Statistics: Inferential
How you know: George is not interested in the descriptive statistics such as measures
of central tendency but interested in the relationship that exists between nutrition types
and weight of body builders.
Independent Variable and Measurement Type: Nutrition type, nominal
Dependent Variable and Measurement Type: Weight, ratio
b. Jason measures math knowledge of his fellow statistics students.
Sample: Statistics students
Statistics: Descriptive statistics
How you know: This is because there is only one variable that Jason wants to
measure. He is not doing any correlation or relationship since there is only one variable.
Independent Variable and Measurement Type: N/A
Dependent Variable and Measurement Type:
c. Tia wants to know how 4th and 5th grades respond differently to
negative feedback.
Sample: 4th and 5th grade students
Statistics: Inferential
How you know: Tia is interested in the relationship that exists between the two grades
and negative feedback. (The relationship between grades and negative feedback)
Independent Variable and Measurement Type: Negative feedback
Dependent Variable and Measurement Type: Response

Quantitative research 1 3
2. Adults’ enjoyment of music was measured on a 7-point scale, with a 7
representing the highest level of music enjoyment. Measures of central
tendency, a box plot, and a histogram are included below.
Enjoyment of music
N Valid 1000
Missing 0
Mean 5.50
Median 6.00
Mode 7
Std. Deviation 1.536
Variance 2.360
Skewness -.975
Std. Error of Skewness .077
Kurtosis .329
Std. Error of Kurtosis .155
Table 1