Types of Studies
What is a Cross Sectional Study?
It's a type of observational study that analyzes data from a population, or a representative subset, at a specific point in time.
What's Time Series Data?
Data that has accumulated over a long period of time
Qualitative variables are also known as Categorical Variables. TRUE or FALSE?
True
Definition of Qualitative Variables: also called a categorical variable, are variables that are not numerical. It describes data that fits into categories.
What's the Longitudinal Study?
A study that considers individuals over a long period of time
What's the difference between Primary and Secondary Data?
Primary Data is, Data observed or collected directly from first-hand experience
Secondary Data is, Published data and the data collected in the past or other parties is called secondary data
What's Ordinal Qualitative Variables?
It is a categorical variable for which the possible values are ordered.
What is a sample?
A selection of individuals taken from a population.
What's Aggregate Data?
Refers to numerical or non-numerical information that is collected from multiple sources or on multiple measures, variables, or individuals and compiled into data summaries or summary reports, typically for the purposes of public reporting or statistical analysis
True or False: Nominal Variables are a part of Quantitative Variables
False, Nominal's are part of the Qualitative Variable.
Definition of Nominal: otherwise known as categorical variables, qualitative variables are variables with no natural sense of ordering. They are therefore measured on a nominal scale.
What is a population?
A group of individuals that is the focus of a study.
What's Experimental Data?
Data produced by measurement or test method
What is Quantitative Variable?
Is it Numerical or Categorical?
Quantitative variables are numerical. They represent a measurable quantity. Also known as numerical variable.
What is data?
A body or series of facts or information.
What's Micro Data?
An observation data collected on an individual object; data on the characteristics of units of a population, such as individuals, households, or establishments, collected by a census, survey, or experiment.
Are Quantitative Variables Continuous or Discrete? And what does it mean IF a quantitative variable is continuous or discrete?
YES, quantitative variables are continuous or discrete.
Continuous Means; If a variable can take on any value between its minimum value and its maximum value, it is called a continuous variable.
Discrete Means; Variables that can only take on a finite number of values are called discrete variables. All qualitative variables are discrete.