CH 2 Flashcards
***Research Design
delineates what data to collect and how to collect it
research design must specify
type of info to be collected, possible data sources, data collection procedure
***components of research design
- define info needed 2. design exploratory descriptive causal research 3. specify measurement/scaling process 4. construct/pretest a questionnaire 5.specify sampling process/sample size 6.develop data analysis plan
**exploratory
improve research to find course of action, provide insight and understanding,flexible/unstructred, tentative, more research after
*****causal
experiments, gathers info on cause and effect relationships through experimentation, manipulation of independent variables, effect on dependent variables
****conclusive
help choose course of action, test specific hypothesis and examine results, clearly defined, conclusive, findings used to make desicions
performance-monitoring
feedback on chosen course of action
***descirptive
doesn’t test for cause and effect, secondary data,prior formulation of specific research, preplanned and structured design
**cross sectional surveys
snapshot of current status same survey different people
**longitudinal surveys
gathering data over a period of time same survey same sample
single cross sectional
info obtained only once
multi cross sectional
two or more samples but info obtained only once
cohort analysis
series of surveys at appropriate time intervals
***advs of longitudinal panels
more accurate data, gather extensive background, reduce bias, tend to cost less, analyze heavy buyers
***Dis of longitudinal panels
unrepresentative sample, response bias (selection not changing), over reporting, mortality effect, testing effect
detective funnel
exploratory- generate all possible research for a problem descriptive/causal-narrow the problem down
***sampling error
difference btw measure obtained from the sample population and and true measure from entire population
**non-sample error
all other errors
**total error
true mean vs observed mean
research proposal
exec summary, research process, research design, time and cost estimates, appendic