ravesh tahghigh 4 - ssu.ac.ir · Microsoft Word - ravesh tahghigh 4.doc Author: Dear-User Created...
Transcript of ravesh tahghigh 4 - ssu.ac.ir · Microsoft Word - ravesh tahghigh 4.doc Author: Dear-User Created...
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2rA
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Prasad
RNA
DNA
(
(
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Well-nourished
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Medline
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(Online Journals)
http://www.nebi.nlm.nih.gov/pubmed
Medline
http://www.igm.nlm.nih.gov
Pubmed
http://www.medmatrix.org/info/medintable.asp
Internet Greatful Med
http://www.emedicin.com
Othersources
http://www.medmatrix.org/reg/login.asp
Emedicin
http://www.shef.ac.uk./uni/acaddemic/R-Z/scharr/ir/netting.htm
Medical Matrix http://www.mwsearch.com
Schart (Netting the evidence) http://www.nthames-health.tpmed.ac.uk/connect/journals.htm Medical World Search http://www.nebi.nlm.nih.gov/pubmed Journallisting http://www.pslgroup.com/dg/medjournals.htm
http://www.guidlines.gov Clinical Practice Guidelines http://www.cma.ca/cpgs
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AA
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VARIABLES
(INDEPENDENT)
(DEPENDENT)
(CONFOUNDING OR INTERVENING)
(BACKGROUND)
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(NOMINAL)
(ORDINAL)
(INTERVAL)
(RATIO)
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;
(Observational Study)
(Descriptive)
(Case Report)
(Cross- Sectional)
(Ecological Studies)
(Analytical study)
(Retrospective)
(Prospective)
o (Cohort)
o (Historical cohort)
(Experimental Study) (Lab Trials)
(Clinical Trials)
(Field Trials)
(Community Trials)
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(Correlational)
Case
Effect
(RETROSPECTIVE)
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(Prospective study)
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(Historical-cohort)
(Case-control study)
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(Experimental Study)
(Randomized Controlled Trials)
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(Blind Techniques)
(Singal blind Trial)
(Double-blind Trial)
(Crossover Trial)
(Matched Controls)
(Background variables)
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(Sequential Trials)
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Face to Face
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check list
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(Census)
(Sampling)
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(Probability sampling)Simple Random Sampling (SRS)
Stratified sampling
Cluster sampling)
(Systematic sampling)
(Multistage sampling
(Non probability sampling) (Convenence sampling)
(Quota sampling
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(N)(Pk)(nk)
Nk= Pk n
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(K)
K
KK
K
20500
10000K
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2
22
d
SZn
n
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S(Standard Deviation)
S
S
d
d
Z
Z
Z
Z
625
)20()96.1(.2
22
2
22
d
SZn
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2
2 )1(
d
PPZn
n
Z
P
PP(n)
d
B
682)03.0(
)80.0(20.0)96.1(2
2
n
1067)03.0(
)50.0(50.0)96.1(2
2
n
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SPSS
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(GANTT)
(GANTT)
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CVA
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WHO
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