Lecture #3 Flashcards
literature review
written summary of evidence on a research problem
purposes:
- integrate evidence (find holes)
-foundation for new studies
- communicate state of evidence to others
- helps interpret research findings
literature review in QUANT
Develop conceptual/theoretical framework: primary and secondary sources
Problem statement and hypothesis refinement
Methodology: design, sample, instruments, procedure
Outcome and analysis
conceptual and theoretical frameworks
structure of concepts or theories that provides the basis for development of research questions or hypotheses
literature review in QUAL
Phenomenological—compare study findings with literature to enhance knowledge of the phenomena of study
Grounded theory—constant comparison of the study findings with the literature
Ethnographic—literature concepts provide a framework for the study
Historical—literature is the data source
primary sources
actual research reports written by researchers who conducted the study
- speeches
- articles
- letters
- experiments
- clinical trials
secondary sources
summaries of studies by someone else
- textbooks
- scoping reviews, systematic reviews, literature reviews
- commentaries
non-research references
meant to broaden understanding of problem, demonstrate need for research
- clinical anecdotes, opinion articles, case reports
search strategy
- search bibliographic databases
- ancestry approach (footnote chasing)
- despondency approach (find more recent studies)
keywords (textword search)
search term, key concepts
quantitative = variables - P/I/O of PICO
qualitative = central phenomenon of interest, population
subject search
heading instead of keyword - ‘mapping’
software translates keywords into the most plausible subject heading
then retrieves citation records that have been coded with that subject heading
author search
prominent researchers in a field
boolean operators
AND, OR, NOT
truncation symbol (*)
expands a search term to include all forms of a root (nurs*)
wild card symbol (?)
middle of a search term to permit alternate spelling (Colo?r) = COLOR, COLOUR
quotation marks (“…”)
exact phrase
key nursing databases
CINAHL, MEDLINE, google scholar
CDSR, wed of knowledge, SCOPUS, EMBASE
CINAHL
nursing journals books ad dissertations
MEDLINE
biomedical literature, journals and records, PubMed (uses controlled vocabulary for indexing articles)
- medical terminology
google scholar
journals, tech reports, documents
less peer-review
screening
for relevance - read abstract
documentation
record search actions and results (prevents duplication)
abstracting and recording
note key features of each study, base review on scant notes
mini-protocol = personal record of studies viewed)
substantive themes
pattern? predominate findings?
amount of evidence?
consistency? gaps?
methodologic themes
what methods used? deficiencies? strengths?
generalizability/transferability themes
population? variability between populations? between setting?
