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types of study design (qualitative study (understanding, survey or…
types of study design
observation
analytical for the testing of the hypothesis
cohort study
group of individual having same character
study the baseline charecters
compare the outcome of experiment with the base line or, with another cohort , or with the large population
usually expensive
complete source population denominator,
rate of occurance of a incidence
ratio or difference can be calculated
2 different cohort can be exposed with same treatment and finally compared
case series
case of disease evaluation,
identifying the symptoms and cause of disease
data colection for clinical data collection
its for clinical education
and auditing
public health research
to create safety profiles
diagnosis
date and time of occurence
place or locality of occurence
characteristic of population
previous data of occurrence
case control
there will be 2 groups 1 normal - controland another disesed- case having
outcome will be known
we will be loking for the reason for the study
reverse engineering
we will be able to find out all the posible reasons for the occurence
only ratio is the result
cross sectional
case and exposure will be studied simultaneously, given time, the frequency of the disease can be found but the continuos data will not be studied
exposure and outcome can be studied together
explorative
knowledge and time will be limited
observing the new things
discriptive
recording the observations
experimental or random controlled trial
sample will be chosen randomly
no selection bias
no alocation bias , who is test who is control
blinded study will avoid the perfomance study , stomach ache
qualitative study
understanding
survey or interview or observation
discover the frame works
can be presented only by words
theory formation
sample quality is important
subjective
embedded knowledge
quantitative
predictive
numerical answeer survey, with rating
frame work already available
in graph
theory testing
sample size is important
objective
public
systematic
literature review
we dont know the outcome the disease can occur or not