CJUS 312 PP1.pptx

# Per cent means per hundred for example 51 x 100 51

• Notes
• 46

This preview shows pages 39–46. Sign up to view the full content.

“Per cent” means “per hundred” For example, .51 x 100 = 51% Exact same information presented as a proportion, except the information is taken to a different decimal place

This preview has intentionally blurred sections. Sign up to view the full version.

Ratios 40 A ratio of one number (X) to another (Y) is defined as X/Y The quantity preceding the word “to” is the numerator of the fraction while the other quantity is the denominator The numerator and denominator are completely distinct groups (unlike proportions and percentages) Can take on numbers greater than zero, as a result
Ratios 41 Ratios are most often reported as “(some number) to 1” Ratio of male to females in our sample of 300 adults: 175/125… 1.4 to 1 1.4:1

This preview has intentionally blurred sections. Sign up to view the full version.

Ratios 42 Provide information that might not be immediately apparent in proportions or percentages, such as the relative size of one group in the sample compared to another More important for scales with more than 2 categories, however
Ratios 43 Consider the following distribution of a likert scale tapping adult attitudes toward the statement “The President of the U.S. does not pay enough attention to crime prevention”

This preview has intentionally blurred sections. Sign up to view the full version.

Ratios 44
Ratios 45 Not limited to specific category pairs Can also be used to construct frequencies (the number of cases in a category) of different combinations of groups

This preview has intentionally blurred sections. Sign up to view the full version.

Rate – a special type of ratio 46 Used when a researcher is referring to an ongoing process in a population, such as fertility, mortality, unemployment, or crime For example a birth rate is the number of births (babies) per so many women in a population The numerator consists of newborns whereas the denominator consists of women who are “at risk” for giving birth Reflects not only different categories in numerator and denominator, but also different types of units in each
This is the end of the preview. Sign up to access the rest of the document.
• Fall '14
• Level of measurement

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern