Limitations of Lean Survey and Phone Survey
The lean survey is designed to collect the information from the field in a shorter time with effective management at a low cost. Another uniqueness of this type of survey is that it represents the survey area due to its methodology. A random sampling method makes the survey bias-free and represents the community.
On the other side, phone surveys are selective. It represents only those populations who own the phone. However, random sampling methodology on a given stratum justifies the sampling. This type of survey is highly cost-effective as it can be managed from any geography by visiting the respondent's place.
Both types of the survey have uniqueness, but there are certain limitations. The lean survey is time-consuming, but the phone survey can be completed comparatively in a shorter time. Phone survey represents a particular section of society that carry the phone and segregates with those who are unfortunate to have phone/mobile connection. This most significant difference makes both types of the survey very different.
Although any intervention takes place in similar geographies, there is a chance to have a similar socio-economic background, which may have similarities in both types of surveys. However, the lower strata of the geography generally do not prefer to have mobile phones due to cost factors or handling the technical parts.
There are specific difficulties in conducting phone surveys. Making the respondent familiar with the survey is a time-consuming process. They often do not connect with the programme, particularly when they are not exposed and have not heard about the intervention. Another means of convincing about the survey itself becomes a difficult task for enumerators. However, the lean survey has an advantage, which happens face-to-face, and visual appearance helps make them familiar with the survey. The field coordinators also help in managing the difficulties that arise in the field.
