I. HPLC
II. 24 hr recall
III. FFQ
IV. Diet history
Codes
Dietary Survey Methods Explained
A dietary survey aims to collect information about an individual's or group's food consumption patterns. Several methods exist, each with its strengths and weaknesses.
Identifying Valid Dietary Survey Methods
- 24 hr recall: This involves asking participants to list all foods and beverages consumed within the previous 24 hours. It's a common method for quick intake assessment.
- FFQ (Food Frequency Questionnaire): Participants report the frequency (e.g., daily, weekly, monthly) with which they consume specific foods from a list over a defined period. This helps assess long-term dietary patterns.
- Diet history: This method involves a detailed interview about an individual's usual eating habits over a longer period (e.g., weeks or months). It includes information on types of food, portion sizes, meal timing, and preparation methods.
Excluding Non-Survey Methods
HPLC (High-Performance Liquid Chromatography) is a sophisticated laboratory technique used for separating, identifying, and quantifying components in a mixture. While it can be used to analyze the nutrient content of specific foods, it is not a method for directly surveying what people eat.
Conclusion on Survey Methods
Based on the definitions, the methods suitable for conducting a dietary survey are 24 hr recall (II), FFQ (III), and Diet history (IV). HPLC (I) is an analytical technique, not a survey method.
Important Questions from Data Collection Instrument - Teaching
- What is a questionnaire?
- Which data collection tool is appropriate for the study of job satisfaction of KVK professionals ?
- Identify the advantages of open ended questions in survey research.
A. It is easy to process answers.
B. Respondents can answer in their own terms.
C. They enhance the comparability of answers.
D. They are useful for exploring new areas or ones in which the researcher has limited knowledge.
Choose the correct answer from the options given below: - Match the items of List – I with the items in List – II and use the correct code to indicate your answer.
List – I (Types of reliability) List – II (Procedure) (a) Stability (i) Administer one test and correlate the items to each other. (b) Equivalence (ii) Administer different tests to the same individuals over a period of time. (c) Equivalence and Stability (iii) Administer the same test to the same individuals over a period of time. (d) Internal consistency (iv) Administer different tests to the same individuals at about the same time.
Codes :
(a) (b) (c) (d) - Which one of the following methods of data collection helps in collecting supplementary information about the informant's personal characteristics ?
