A retrospective pregnancy cohort for 2007 was constructed by triangulating data from antenatal care, birth, and newborn care registers in a sample of villages in three rural sub districts in Central Java, Indonesia.
Estimates derived by triangulating data from several sources, suggest that the data recorded in Figure 2 may represent only about 50% of the total number of vasectomies conducted.
This study introduces the chance to determine unconscious reactions of people by triangulating data gathered by several measurement techniques that are directly measured in the field, which can be served as useful inputs for urban planning.
However, by triangulating data sources, we have put significant efforts in preventing such biases as much as possible.
The effects and impact of the programme will be determined by triangulating data (quantitative and qualitative) and information from different sources, examining trends where possible, and trying to find and support explanations for the observed findings (figure 4).
Trustworthiness of the research findings was enhanced by triangulating data obtained from the key informant interviews with those obtained from documentary review and informal discussions.
Credibility will be established by triangulating data collection methods and sources and having at least two researchers independently code and analyze the transcripts (analyst triangulation) (52, 62).
Using three complementary approaches made it possible to enhance the validity of the data by subsequently triangulating data from the three sources.
However, more can and must be done to improve mortality measurement by improving data quality, triangulating data, and expanding analytic capacity.
We triangulated data by comparing the responses of study participants with findings from the literature and a review of documents.
