Endterm Flashcards
Classification of Research Data
By source
By form
Research data by source
Primary data
Secondary data
Research data by form
Qualitative data
Quantitative data
gathered directly from the infomants of the study
Primary data
previously gathered, compiled and stored somewhere and may be made available to the researcher who finds them useful to his particular study
Secondary data
descriptions of the characteristics of the people, things or events under investigation
Qualitative data
numerical in nature which possesses the property by measurability
Quantitative data
Aspects of Data Quality
Timeliness
Clear definition of what is to be measured
Who will use the resulting information
How the information will be used for making decisions
is the closeness of a measured or computed value to its true value
Accuracy
is the closeness of repeated measurements of the same quality to each other
Precision
are values that the variables can assume
Data
a collection of data values
Data Set
data in their original form just as they were collected
Raw data
the researcher can deliberate o give some explanations or speculations as long as they have the research data as bases or anchor
Data-based
Results are restricted to whatever information have been gathered and analyzed
data bound
the application of the findings or conclusions from a small group to a large group from which the former group was drawn
Inferential analysis
refers to all members, units or elements of any well-defined set or group of people or objects which is the focus of the investigation
Population
if the units or members have identical or similar characteristics
homogenous
if the units or members have extremely diverse or different characteristics
heterogenous
refers to a subgroup or portion of the population selected to represent the population
Sample
Data Collection methods
Direct Method or Interview
Indirect Method or Use of Questionnaires
Observation
Experimentation
Direct Method or interview
Personal or Face to Face Interviews
Telephone Interviews
Issue of Direct Method
It is done by asking deliberately two or more questions that give the same information
Comparison of the answers reveal consistency of the information given
Data Quality Measure
Indirect Method or Use of Questionnaires
Personally Administered Questionnaires
Mail Questionnaires
Electronic Questionnaires
Quality of Research Instrument
Reliability
Validity
refers to the degree of consistency, accuracy, stability dependability and predicability of the instrument
Reliability
refers to the quality of research instrument what it is supposed to measure
Validity
Types of Questionnaires according to source
Standardized
Researcher-made