What is the difference between numbers and quantitative and qualitative data?
For the qualitative variables, nominal and ordinal, the numbers are an indicator of the number of patients that belong to each category (i.e. male or female, stage I or stage II). For the quantitative variables, the numbers are the actual numerical measure of the variable in question (i.e. blood pressure difference).
How do I conduct a qualitative research study about blood pressure?
The process of conducting a qualitative research study about blood pressure first begins with the design of the study. As the method is qualitative, the approach is what next needs to be decided: what exactly is to be studied and how will data be collected and analyzed?
What is the difference between quantitative and continuous data?
For the quantitative variables, the numbers are the actual numerical measure of the variable in question (i.e. blood pressure difference). Quantitative variables can be further classified as: Continuous data: can be measured to as many decimal places as the measuring instrument allows
Is blood pressure discrete or continuous data?
Discrete data: there are only a finite number of values possible (compared to continuous where there is an infinite number of possible values) Is blood pressure an example of continuous or discrete data? Blood pressure is an example of continuous data. Blood pressure can be measured to as many decimals as the measuring instrument allows.
What kind of variable is blood pressure?
continuous variablesExamples of continuous variables are body mass, height, blood pressure and cholesterol.
Is blood pressure quantitative discrete?
Is blood pressure an example of continuous or discrete data? Blood pressure is an example of continuous data.
Is blood pressure quantitative continuous?
2) Continuous Variables: These are sometimes called quantitative or measurement variables; they can take on any value within a range of plausible values. For example, total serum cholesterol level, height, weight and systolic blood pressure are examples of continuous variables.
How do you know if a variable is qualitative or quantitative?
What are quantitative and qualitative data? Quantitative data are measures of values or counts and are expressed as numbers. Quantitative data are data about numeric variables (e.g. how many; how much; or how often). Qualitative data are measures of 'types' and may be represented by a name, symbol, or a number code.
What is an example of a qualitative variable?
Qualitative Variables. Also known as categorical variables, qualitative variables are variables with no natural sense of ordering. They are therefore measured on a nominal scale. For instance, hair color (Black, Brown, Gray, Red, Yellow) is a qualitative variable, as is name (Adam, Becky, Christina, Dave . . .).
Is blood type qualitative or quantitative?
For example, blood group and gender are forms of categorical data. The values belong to some sort of category, on the basis of a qualitative property. Essentially, "categorical" is a synonym for "qualitative".
What level of measurement is blood pressure?
Blood pressure is measured in units of millimeters of mercury (mmHg). The readings are always given in pairs, with the upper (systolic) value first, followed by the lower (diastolic) value.
What type of data is blood pressure quizlet?
It can be ordinal, interval or ratio types. Examples of continuous variables are blood pressure, height, weight, income, and age. Rank-ordering data simply puts the data on an ordinal scale.
Is blood pressure an ordinal variable?
Age, heart rate, systolic blood pressure, and cardiac output are examples of continuous variables. It is important to make a distinction between discrete and continuous variables as each requires a different set of statistical tests for proper analysis.
What are examples of quantitative variables?
Height, weight, response time, subjective rating of pain, temperature, and score on an exam are all examples of quantitative variables.
What is qualitative and quantitative variable with example?
Quantitative Variables - Variables whose values result from counting or measuring something. Examples: height, weight, time in the 100 yard dash, number of items sold to a shopper. Qualitative Variables - Variables that are not measurement variables. Their values do not result from measuring or counting.
What are some examples of quantitative and qualitative data?
Start with yourself as an example. To acquire qualitative data, consider identifiers like the color of your clothes, type of hair, and nose shape. For quantitative data, consider measurable values like your height, weight, age, and shoe size.
Is systolic blood pressure a discrete or continuous variable?
– Is systolic blood pressure discrete or continuous? Theoretically, the systolic blood pressure of an individual is a continuous variable since it can take on any value between 0 and 300 mmHg.
Is blood type discrete or continuous?
Blood type is not a discrete random variable because it is categorical. Continuous random variables have numeric values that can be any number in an interval.
Is heart rate quantitative discrete or continuous?
continuousVariables such as heart rate, platelet count and respiration rate are in fact discrete yet are considered continuous because of large number of possible values.
Is systolic blood pressure a discrete variable?
Age, heart rate, systolic blood pressure, and cardiac output are examples of continuous variables. It is important to make a distinction between discrete and continuous variables as each requires a different set of statistical tests for proper analysis.
Why is it important to have a clear understanding of how variables are classified?
Procedures to summarize data and to perform subsequent analysis differ depending on the type of data (or variables) that are available. As a result, it is important to have a clear understanding of how variables are classified.
What are the three categories of variables?
There are three general classifications of variables: 1) Discrete Variables: variable s that assume only a finite number of values, for example, race categorized as non-Hispanic white, Hispanic, black, Asian, other. Discrete variables may be further subdivided into:
What are some examples of continuous variables?
For example, total serum cholesterol level, height, weight and systolic blood pressure are examples of continuous variables.
Is there a finite number of possible values?
Discrete data: there are only a finite number of values possible (compared to continuous where there is an infinite number of possible values)
Is blood pressure continuous data?
Blood pressure is an example of continuous data. Blood pressure can be measured to as many decimals as the measuring instrument allows. For example, although a typical blood pressure cuff does not provide decimal places, a digital blood pressure monitor (often used in hospital settings) may have the capacity to determine the blood pressure to 3 decimal places, and even more powerful blood pressure monitors may be developed that can read a patients blood pressure to 5 decimal places.
Who discovered that pressure depends only on depth?
This was recognized by the French scientist Blaise Pascal, and is called Pascals’s Law:
How is pressure related to the amount of force?
Intuitively, the pressure exerted on an object should be related to the force exerted on the object and the amount of area the force is acting on. It should be noted that when measuring the pressure on an object, the force is assumed to be acting perpendicular to the object’s surface (or ‘normal’ to the surface). Formally, the definition for pressure (with regards to fluids) goes as follows: If is the magnitude of the normal force on a surface area , then the pressure is defined as the ratio of force to area:
How does a blood pressure cuff work?
The cuff is there to put pressure on the artery in your arm. At first, it is inflated so that the pressure from the outside is greater than the blood pressure - so the blood flow is cut off! Then the air is slowly let out, and the pressure in the cuff drops gradually. At the same time, the nurse puts a stethoscope on your arm and listens for the blood to start flowing. At the moment when the nurse can hear the blood gushing, the blood pressure in the blood pressure cuff (outside pressure) is equal to the blood pressure in the artery, or as you can see on the picture, the two graphs intersect.
What is the systolic pressure of a systolic systo?
systolic pressure consistently 120 to 139, or diastolic 80 to 89
What is the force exerted by the blood against the blood vessel walls?
Blood Pressure is the force exerted by the blood against the blood vessel walls.
What is the change in pressure applied to an enclosed fluid?
A change in pressure applied to an enclosed fluid is transmitted undiminished to every point of the fluid and the walls of the containing vessel
What does reading mean in a heart?
reading, and it represents the pressure in the arteries when the heart is at rest.
