Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia
Telescoping errors occur if survey respondents misdate consumption or expenditure episodes by including events from outside the reference period in their recall. Concern about telescoping influenced the design of early Living Standards Measurement Study (LSMS) surveys, which used a two-visit intervi...
| Autores principales: | , , , , |
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| Formato: | Artículo preliminar |
| Lenguaje: | Inglés |
| Publicado: |
International Food Policy Research Institute
2020
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/143562 |
| _version_ | 1855530469418860544 |
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| author | Abate, Gashaw T. de Brauw, Alan Gibson, John Hirvonen, Kalle Wolle, Abdulazize |
| author_browse | Abate, Gashaw T. Gibson, John Hirvonen, Kalle Wolle, Abdulazize de Brauw, Alan |
| author_facet | Abate, Gashaw T. de Brauw, Alan Gibson, John Hirvonen, Kalle Wolle, Abdulazize |
| author_sort | Abate, Gashaw T. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Telescoping errors occur if survey respondents misdate consumption or expenditure episodes by including events from outside the reference period in their recall. Concern about telescoping influenced the design of early Living Standards Measurement Study (LSMS) surveys, which used a two-visit interview format to allow a bounded recall. This design fell out of favor although not for evidence-based reasons. Recent guidelines to harmonize food data collection in low- and middle-income countries by using one-week recall increase the relevance of telescoping because errors spread over a shorter period will loom larger. To provide evidence on telescoping, we conducted a survey experiment in Ethiopia, randomly assigning a balanced sample – either a two-visit bounded recall or a single visit unbounded recall. The average value of reported food consumption is 16 percent higher in the unbounded single visit recall relative to the two-visit bounded recall. Put differently, in this experiment, telescoping errors amount, on average, to an entire extra day worth of consumption being included in the report for the last seven days. Most of the error is explained by difference in reporting of spending on less frequently consumed, protein-rich foods, so apparent diet diversity and dietary quality indicators are likely to be overstated when using unbounded recall. |
| format | Artículo preliminar |
| id | CGSpace143562 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | International Food Policy Research Institute |
| publisherStr | International Food Policy Research Institute |
| record_format | dspace |
| spelling | CGSpace1435622025-12-02T21:03:03Z Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia Abate, Gashaw T. de Brauw, Alan Gibson, John Hirvonen, Kalle Wolle, Abdulazize surveys households living standards diet quality food consumption diet Telescoping errors occur if survey respondents misdate consumption or expenditure episodes by including events from outside the reference period in their recall. Concern about telescoping influenced the design of early Living Standards Measurement Study (LSMS) surveys, which used a two-visit interview format to allow a bounded recall. This design fell out of favor although not for evidence-based reasons. Recent guidelines to harmonize food data collection in low- and middle-income countries by using one-week recall increase the relevance of telescoping because errors spread over a shorter period will loom larger. To provide evidence on telescoping, we conducted a survey experiment in Ethiopia, randomly assigning a balanced sample – either a two-visit bounded recall or a single visit unbounded recall. The average value of reported food consumption is 16 percent higher in the unbounded single visit recall relative to the two-visit bounded recall. Put differently, in this experiment, telescoping errors amount, on average, to an entire extra day worth of consumption being included in the report for the last seven days. Most of the error is explained by difference in reporting of spending on less frequently consumed, protein-rich foods, so apparent diet diversity and dietary quality indicators are likely to be overstated when using unbounded recall. 2020-11-01 2024-05-22T12:15:06Z 2024-05-22T12:15:06Z Working Paper https://hdl.handle.net/10568/143562 en https://doi.org/10.2499/p15738coll2.134018 https://doi.org/10.2499/p15738coll2.134735 Open Access application/pdf International Food Policy Research Institute Abate, Gashaw Tadesse; de Brauw, Alan; Gibson, John; Hirvonen, Kalle; and Wolle, Abdulazize. 2020. Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia. IFPRI Discussion Paper 1976. Washington, DC: International Food Policy Research Institute (IFPRI). https://doi.org/10.2499/p15738coll2.134161. |
| spellingShingle | surveys households living standards diet quality food consumption diet Abate, Gashaw T. de Brauw, Alan Gibson, John Hirvonen, Kalle Wolle, Abdulazize Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia |
| title | Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia |
| title_full | Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia |
| title_fullStr | Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia |
| title_full_unstemmed | Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia |
| title_short | Telescoping causes overstatement in recalled food consumption: Evidence from a survey experiment in Ethiopia |
| title_sort | telescoping causes overstatement in recalled food consumption evidence from a survey experiment in ethiopia |
| topic | surveys households living standards diet quality food consumption diet |
| url | https://hdl.handle.net/10568/143562 |
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