PMID- 24463334
OWN - NLM
STAT- MEDLINE
DCOM- 20161114
LR  - 20171116
IS  - 1460-2237 (Electronic)
IS  - 0268-1080 (Linking)
VI  - 30
IP  - 2
DP  - 2015 Mar
TI  - Can health workers reliably assess their own work? A test-retest study of bias 
      among data collectors conducting a Lot Quality Assurance Sampling survey in 
      Uganda.
PG  - 181-6
LID - 10.1093/heapol/czt110 [doi]
AB  - BACKGROUND: Lot Quality Assurance Sampling (LQAS) is a classification method that 
      enables local health staff to assess health programmes for which they are 
      responsible. While LQAS has been favourably reviewed by the World Bank and World 
      Health Organization (WHO), questions remain about whether using local health 
      staff as data collectors can lead to biased data. METHODS: In this test-retest 
      research, Pallisa Health District in Uganda is subdivided into four 
      administrative units called supervision areas (SA). Data collectors from each SA 
      conducted an LQAS survey. A week later, the data collectors were swapped to a 
      different SA, outside their area of responsibility, to repeat the LQAS survey 
      with the same respondents. The two data sets were analysed for agreement using 
      Cohens' kappa coefficient and disagreements were analysed. RESULTS: Kappa values 
      ranged from 0.19 to 0.97. On average, there was a moderate degree of agreement 
      for knowledge indicators and a substantial level for practice indicators. 
      Respondents were found to be systematically more knowledgeable on retest 
      indicating bias favouring the retest, although no evidence of bias was found for 
      practices indicators. CONCLUSIONS: In this initial study, using local health care 
      providers to collect data did not bias data collection. The bias observed in the 
      knowledge indicators is most likely due to the 'practice effect', whereby 
      respondents increased their knowledge as a result of completing the first survey, 
      as no corresponding effect was seen in the practices indicators.
CI  - Published by Oxford University Press in association with The London School of 
      Hygiene and Tropical Medicine (c) The Author 2014; all rights reserved.
FAU - Beckworth, Colin A
AU  - Beckworth CA
AD  - Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK 
      cab@liverpool.ac.uk.
FAU - Davis, Rosemary H
AU  - Davis RH
AD  - Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
FAU - Faragher, Brian
AU  - Faragher B
AD  - Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
FAU - Valadez, Joseph J
AU  - Valadez JJ
AD  - Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20140124
PL  - England
TA  - Health Policy Plan
JT  - Health policy and planning
JID - 8610614
MH  - Bias
MH  - Data Collection
MH  - Delivery of Health Care/*standards/statistics & numerical data
MH  - Health Personnel/psychology/*standards
MH  - Humans
MH  - Lot Quality Assurance Sampling
MH  - Reproducibility of Results
MH  - Uganda
OTO - NOTNLM
OT  - Cohen's kappa
OT  - Lot Quality Assurance Sampling
OT  - bias
OT  - test-retest
EDAT- 2014/01/28 06:00
MHDA- 2016/11/15 06:00
CRDT- 2014/01/28 06:00
PHST- 2014/01/28 06:00 [entrez]
PHST- 2014/01/28 06:00 [pubmed]
PHST- 2016/11/15 06:00 [medline]
AID - czt110 [pii]
AID - 10.1093/heapol/czt110 [doi]
PST - ppublish
SO  - Health Policy Plan. 2015 Mar;30(2):181-6. doi: 10.1093/heapol/czt110. Epub 2014 
      Jan 24.