_:n3ef3058fcd2e4c55aa3484d18d41d092xb0
<http://schema.org/description>
"Abstract\r\n---------------------------\r\n\r\nSustainable Development Goal (SDG) target 2.1 commits countries to end hunger, ensure access by all people to safe, nutritious and sufficient food all year around. Indicator 2.1.2, “Prevalence of moderate or severe food insecurity based on the Food Insecurity Experience Scale (FIES)”, provides internationally-comparable estimates of the proportion of the population facing difficulties in accessing food. More detailed background information is available at http://www.fao.org/in-action/voices-of-the-hungry/fies/en/ .\n\nThe FIES-based indicators are compiled using the FIES survey module, containing 8 questions. Two indicators can be computed:  1. The proportion of the population experiencing moderate or severe food insecurity (SDG indicator 2.1.2), 2. The proportion of the population experiencing severe food insecurity. These data were collected by FAO through the Gallup World Poll. General information on the methodology can be found here: https://www.gallup.com/178667/gallup-world-poll-work.aspx. National institutions can also collect FIES data by including the FIES survey module in nationally representative surveys.\n\nMicrodata can be used to calculate the indicator 2.1.2 at national level. Instructions for computing this indicator are described in the methodological document available under the \"DOCUMENTATION\" tab above. Disaggregating results at sub-national level is not encouraged because estimates will suffer from substantial sampling and measurement error.\r\n\r\nGeographic coverage\r\n---------------------------\r\n\r\nNational\r\n\r\nAnalysis unit\r\n---------------------------\r\n\r\nIndividuals\r\n\r\nUniverse\r\n---------------------------\r\n\r\nIndividuals of 15 years or older.\r\n\r\nKind of data\r\n---------------------------\r\n\r\nSample survey data [ssd]\r\n\r\nSampling procedure\r\n---------------------------\r\n\r\nThe sample was drawn proportional to the population and the country was stratified by region and by urban/rural classification.\nExclusions: None\nDesign effect: 1.3\r\n\r\nMode of data collection\r\n---------------------------\r\n\r\nFace-to-face par [f2f]\r\n\r\nCleaning operations\r\n---------------------------\r\n\r\nStatistical validation assesses the quality of the FIES data collected by testing their consistency with the assumptions of the Rasch model. This analysis involves the interpretation of several statistics that reveal 1) items that do not perform well in a given context, 2) cases with highly erratic response patterns, 3) pairs of items that may be redundant, and 4) the proportion of total variance in the population that is accounted for by the measurement model.\r\n\r\nSampling error estimates\r\n---------------------------\r\n\r\nThe margin of error is estimated as 3.5 .This is calculated around a proportion at the 95% confidence level. The maximum margin of error was calculated assuming a reported percentage of 50% and takes into account the design effect. The margin of error is estimated as 3.5 .This is calculated around a proportion at the 95% confidence level. The maximum margin of error was calculated assuming a reported percentage of 50% and takes into account the design effect.\r\n\r\nData appraisal\r\n---------------------------\r\n\r\nThe variable WORRIED was not considered in the computation of the published FAO food insecurity indicator based on FIES due to the results of the validation process."
<https://microdata.fao.org/index.php/catalog/653>