SUMMARYUsing previously collected data of fourth-grade children observed eating school meals and then interviewed, we categorized intrusions (food items reported but not observed eaten) as stretches (on the child's tray) or confabulations (not on the child's tray). We investigated intrusions, confabulations, and stretches, and the role of liking, at different retention intervals (morning interviews about the previous day's intake; evening interviews about that day's intake) and under different reporting-order prompts (forward; reverse). As retention interval between consumption and report increased, the likelihood 1) increased that reported items were intrusions, that reported items were confabulations, and that intrusions were confabulations; and 2) was constant that reported items were stretches. Results concerning reporting-order prompts were inconclusive. Liking ratings were higher for matches (reports of items observed eaten) than stretches, for confabulations than stretches, and for matches than omissions (unreported items observed eaten), but did not vary by retention interval or reporting-order prompts. Keywords children; dietary recalls; types of intrusion; retention interval; reporting-order prompts Accurate assessment of dietary intake is challenging, especially among children Frank, 1991). It is difficult for parents to accurately report their children's intake (Eck, Klesges, & Hanson, 1989), especially after children begin attending school (Emmons & Hayes, 1973). Thus, it is necessary to obtain dietary-intake information from children themselves.A common method for collecting information about intake is the 24-hour dietary recall (24hDR), for which an interviewer asks a respondent about his or her intake for a 24-hour target period. Although data collection and processing are costly, 24hDRs do not require that respondents be literate, and the procedure is unlikely to alter intake (Buzzard, 1998).Children have provided 24hDRs for national surveys (e.g., Gleason & Suitor, 2001;Moshfegh, Goldman, & Cleveland, 2005) and research studies (e.g., Luepker et al., 1996;Nicklas, Webber, Srinivasan, & Berenson, 1993;Weber et al., 2004). Children's 24hDRs have also been used to evaluate nutrition-education interventions (Contento, Randell, & Basch, 2002), and multiple *Correspondence to: Suzanne Domel Baxter, PhD, RD, FADA, Institute for Families in Society, University of South Carolina, 1600 Hampton Street Suite 507, Columbia, SC 29208; Tel: (803) 777-1824 ext 12; Fax: (803)
NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscript 24hDRs by children have been used to assess the relative validity of food frequency questionnaires (e.g., Field et al., 1999;Jensen et al., 2004).
Validation of dietary recallsIn validation studies, dietary reporting accuracy is assessed by comparing reported information (e.g., 24hDRs) to reference information (e.g., meal observation) (Baxter, Smith, Hardin, & Nichols, 2007). (In relative validation studies, reference information consists of another selfreport m...