Statistics Vocabulary
The study of how to Collect, Organize, Analyze, and Interpret Data.
What is Statistics?
the group that does not receive the experimental treatmetn
What is Control Group
The "What" that is being observed.The characteristics or attributes that can be measured or observed like age, income, education, height, weight, color or types.
What is a Variable?
A common means to gather data about people is to ask them questions on/in this...
What is Survey?
A specific condition applied to individuals in an experiment. Ex: A new medicine
What is a Treatment?
A subject is un-knowingly receiving a faulty or FAKE treatment. What is the treatment called?
What is a Placebo ?
A process of randomly assigning subjects to different treatment groups.
What is Randomization?
The level of measurement where there is no meaningful zero, there is order, and differences are meaningful.
What is Interval Variable, or Interval Level of measurement?
A treatment imposed on the variable to see how it changes and a response is recorded
What is Experiment?
A number that describes a whole population
What is a Parameter?
This is conducted in a way that doesn't effect the variable being measured. A research observes individuals and measures variables but does not attempt to influence responses
What is Observational Study?
A specific condition applied to individuals in an experiment
What is a Treatment?
The lowest level of measurement
Data are classified into categories and cannot be arranged into any particular order (qualitative data only)
What is Nominal Variable, or Nominal level of measurement?
Data from a representative portion of the population?
A subset of the population of interest in a study
What is a Sample?
Describes an individual or experimental unit by groups or categories
What is Qualitative Variable?
Used when you want to describe the population that is being studied (summarizes or visualizes data)
What is Descriptive Statistics?
Repeating the essence of a research study, usually with different participants in different situations, to see, whether the basic finding extends to other participants and circumstances
What is Replication?
Has a true zero (inherent zero) and is the largest level of measurement. A zero means NONE. There are set distances between measures and data can be ordered.
What is Ratio Variable, or Ratio level of measurement.
All individuals/things of interest in a study?
What is a Population?
Error that always occurs when you take a sample from the population.
What is Sampling Error?
To take data and make it more generalized to a broader population group. Using observations to draw conclusions about a population
What is Inferential Statistic?
A method we usually learn about in science classes where the experimenter observes a problem, asks a question/forms a hypotheses, collects and analyzes data,interprets data, reports and applies the results.
What is the Scientific Method?
The level of measurement where differences have no consistent(differences cannot be determined) meaning and categories have order.
What is Ordinal Variable, or Ordinal level of measurement?
Data that is weighed, measured or counted
What is Quantitative/Numeric data?
What is a Census?