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Introduction to Stadistics and Quantitative Reasearch Methods - Coggle…
Introduction to Stadistics and Quantitative Reasearch Methods
Statistics Defined
Statistics is the science and practice of developing human knowledge through the use of empirical data expressed in quantitative form.
What is stadistics?
• The collecting, summarizing, and analyzing of data.
• The term also refers to raw numbers, or “stats”, and to the summarization of data.
Statistics humour
A physician makes an analysis of a complex illness whereas a statistician makes you ill with a complex analysis!
Types of Statistics
Descriptive Statistics:
describe the relationship between
variables.
Inferential Statistics:
make inferences about the population,
based on a random sample.
Research Methods
Research is structural. There are basic steps depending on the subject researcher.
Basic Steps
The following are the basic steps of most research.
1) Develop a research question
• 2) Conduct thorough literature review
• 3) Re-define research question Æ hypothesis
• 4) Design research methodology/study
• 5) Create research proposal
Variables
In research, the characteristic or phenomenon that can be measured or classified is called a variable. There are 4 levels of variables:
•Nominal
• Ordinal
• Interval
• Ratio
Types of Variables
Variables can be classified as independent or dependent.
• An independent variable is the variable that you believe will influence your outcome measure.
A dependent variable is the variable that is dependent on or
influenced by the independent variable(s).