basic concept of ststs Flashcards
is the science of collecting, organizing, summarizing, and analyzing information
to draw conclusions or to answer questions.
Statistics
I is not an exact Science. It is usually considered a distinct mathematical science
rather than a branch of mathematics.
Statistics
is about providing a measure of confidence in any conclusions.
Statistics
used to describe the entire population being studied.
Parameter
process of statistics
ICOD
- Identify the research objective
- Collect the information needed to answer the questions.
- Organize and summarize the information.
- Draw conclusion from the information.
The total collection of all the elements that we are interested in
is called
population.
A subgroup of the population that will be
studied in detail is called
sample.
Identify the research objective(dq)
- determine the question you want to be answered
- question must be detailed to identify the group to be studied
is the process of gathering and measuring information on variables
of interest, in an established systematic fashion that enables one to answer stated
research questions, test hypotheses, and evaluate outcomes.
Data collection
Importance of Data Collection
EHABHII
- empowers you to make informed decisions.
- helps you identify problems.
- allows you to develop accurate theories.
- backup your arguments.
- helps you get your hands-on funding.
- increases your return on assets.
- improves quality of life.
Consequences from Improperly Collected Data
IIDMCC
I Inability to answer research questions accurately
I Inability to repeat and validate the study
I Distorted findings resulting in wasted resources
I Misleading other researchers to pursue fruitless avenues of investigation
I Compromising decisions for public policy
I Causing harm to human participants and animal subjects
Steps in Data Gathering
SDDDC
- Set the objectives for collecting data.
- Determine the data needed based on the set objectives.
- Determine the method to be used in data gathering and define the
comprehensive data collection points. - Design data gathering forms to be used.
- Collect data.
provide a first-hand account of an event or time period and
are considered to be authoritative. They represent original thinking, reports on
discoveries or events, or they can share new information. Often these sources
are created at the time the events occurred but they can also include sources
that are created later.
Primary sources
sources offer an analysis, interpretation or a restatement of
primary sources and are considered to be persuasive. They often involve
generalization, synthesis, interpretation, commentary or evaluation in an
attempt to convince the reader of the creator’s argument.
Secondary sources
Methods of Collecting Primary Data: The researcher has direct contact with the interviewee.
The researcher gathers information by asking questions to the interviewee.
Direct personal interviews.
Methods of Collecting Primary Data: This methods of data collection involve sourcing
and accessing existing data that were originally collected for
Indirect/Questionnaire Method.
Methods of Collecting Primary Data: is a group interview of approximately six to twelve people who share
similar characteristics or common interests. A facilitator guides the group based on a
predetermined set of topics.
Focus group
Methods of Collecting Primary Data: is a method of collecting data where there is direct human intervention
on the conditions that may affect the values of the variable of interest.
Experiment
