WGU C985 Practice Quiz Solved 100%
Quantitative data - ANSWER-analysis of numeric data
Qualitative data - ANSWER-describes observations; must be
... [Show More] categorized before summarizing; has subjectivity
Indicate whether each of the following represents qualitative or quantitative data:
a. type of health insurance
b. blood pH level
c. number of ED admission in July
d. patient's self-report of pain on scale 1-10 - ANSWER-a. qualitative; this is a category
b. quantitative; this is a number
c. quantitative
d. qualitative; this is subjective data and categorical
Quantitative date will be numerical data.
Descriptive statistics are discrete numbers: accurate and verifiable. - ANSWER-Examples: are sample size (shown as "n"); mean, median, mode; minimum, maximum; range; standard deviation; quartiles
Qualitative data are observable, categorical data. - ANSWER-Examples in healthcare are: condition of a patient at time of discharge; type of insurance; place of birth
What are 4 types of statistical tests.
All of these are inferential statistical tests because with the result of the test on a smaller population of people, inferences or guesses or predictions are made on the larger population. - ANSWER-ANOVA
t-test
Chi Square
Regression Analysis
ANOVA - ANSWER-Analysis of variance. Compares multiple (like) groups (means) in their response to different interventions. Compares the responses. Looks for differences.
t-test - ANSWER-same as ANOVA, except only compares two groups, or may compare results of intervention of same group at two different times. Looks for differences.
Chi Square - ANSWER-tests for relationships between categorical variables. Used with qualitative data. The value is in the category, not in a number. Looks for similarities.
Regression Analysis - ANSWER-estimates the relationship among variable to make predictions. Use to analyze and adjust risk. The combination of multiple variable produces a greater predictive value.
A word about Regression Analysis - ANSWER-Allows us to quantify the relationship between a particular variable and outcome we care able. Or multiple variables in most cases.
Sometimes called multi-factorial regression, multiple regression.
Used for making predictions, decisions for the future, based on today's data.
It's the combination of variables that gives us the greatest predictive value.
Ex. if a person smokes, (variable) what are their chances for developing heart disease?
What if they smoke and are obese (another variable)?
What if the person smokes, is obese, and has a family history of heart attacks (another variable)?
A group of dental hygiene students are researching the effectiveness of daily oral care. They want to prove which self-care is more effective for patient's, on a daily basis.
The students select a group of patients from the school dental clinic, n=30, who have a history of dental cavities & poor oral care.
*1. self-care method is brushing after each meal with a power brush,
*2. is brushing after each meal with any type of toothbrush & using mouthwash
*3. is using any type of toothbrush, brushing after each meal, flossing, & using mouthwash
The patients are divided into 3 groups, with each group receiving a different self-care method to follow for 1 month.
Which statistical test is appropriate when determining the preferable treatment?
*ANOVA
*t-test
*Chi Square
*Regression Analysis - ANSWER-ANOVA test [Show Less]