GS TS BS LÊ HOÀNG NINH
NGHIÊN CỨU LÀ GÌ ?
Research is the systematic
collection, analysis and
interpretation of data to answer a
certain question or solve a problem
It is crucial to follow cascading
scientific steps when conducting
one’s research
Qui trình một nghiên cứu khoa
học
Selection of area
Selection of topic
Crude research question
no answer
Refined research question
Research hypothesis, goals and objectives
Study design
Population & sampling
Variables confounding bias
Research tools
Pilot study
Work plan
Collection of data
Data management
Interpretation
Reporting
no need for study
answers found
Literature review
Ethical issues
1. Thi t k nghiên cứuế ế
Descriptive studies Analytical studies
Case report
Case serial
reports
Cross-sectional
studies
Ecological
studies
Observational
studies
Experimental
studies
Case-control
studies
Cohort
studies
Prospective Retrospective
(historical)
Randomized
Controlled Clinical
trials
Randomized
Controlled field
trials
Non-randomized
experiments
Chọn lựa thi t k t t nh t ế ế ố ấ
Purpose of the study
State of existing knowledge (in
relation to study question)
Characteristics of the study
variables
Latency
Feasibility