Richard Valliant
Biographic Data
| ID | 4168544 |
|---|---|
| NAME | Richard Valliant |
| GIVEN NAMES | Richard |
| FAMILY NAME | Valliant |
| SIGNATURE | VALLIANT R |
| AFFILIATIONS | University of Michigan |
| ORCID | 0000-0002-9176-2961 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 26 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1988 |
| LATEST PUBLICATION YEAR | 2018 |
| H-INDEX | 3 |
Practical Tools for Designing and Weighting Survey Samples
Survey Weights
Practical Tools for Designing and Weighting Survey Samples
Practical Tools for Designing and Weighting Survey Samples
Estimating Propensity Adjustments for Volunteer Web Surveys
Panels of persons who volunteer to participate in Web surveys are used to make estimates for entire populations, including persons who have no access to the Internet. One method of adjusting a volunteer sample to attempt to make it representative of a larger population involves randomly selecting a reference sample from the larger population. The act of volunteering is treated as a quasi-random process where each person has some probability of vo…
Estimation for Volunteer Panel Web Surveys Using Propensity Score Adjustment and Calibration Adjustment
A combination of propensity score and calibration adjustment is shown to reduce bias in volunteer panel Web surveys. In this combination, the design weights are adjusted by propensity scores to correct for selection bias due to nonrandomized sampling. These adjusted weights are then calibrated to control totals for the target population and correct for coverage bias. The final set of weights is comprised of multiple components, and the estimator …
Validation of a Diary Measure of Children's Physical Activities
This study compares levels of physical activity of 9–14-year-old children from a self-reported time diary with those measured using an accelerometer. Children (N=92) wore an accelerometer for one weekend day and completed a 24-hour time diary for that day. The time children spent in moderate to vigorous physical activity from time diaries was moderately highly correlated with the measured results. Self-reported and objective measures of in tensit…
Variance Estimation for Price Indexes From a Two-Stage Sample With Rotating Panels
Estimation of price indexes in the United States is generally based on complex rotating panel surveys. The sample for the Consumer Price Index, for example, is selected in three stages—geographic areas, establishments, and individual items—with 20% of the sample being replaced by rotation each year. At each period, a time series of data is available for use in estimation. This article examines how to best combine data for estimation of long-term …
A Class of Multiplicative Estimators of Laspeyres Price Indexes
Publication of indexes measuring changes in prices of retail, wholesale, export, and import items is an important part of many governmental statistics programs. One form of price index that is often used is the fixed-base Laspeyres, in which a fixed market basket of goods is priced over time. This article introduces a new class of multiplicative estimators of Laspeyres indexes. The optimum within the class is derived for long-term price change an…
Estimation of Laspeyres Price Indexes Using the Prediction Approach for Finite Population Sampling
Estimators of chain and fixed-base Laspeyres price indexes are studied using the prediction approach to finite population sampling. The estimators include some that are based on those used in several U.S. government index programs and others derived from prediction models. Biases and variances of the estimators are studied for a case in which the reference period index weights are unknown for nonsample items. Under a model for a one-period price …
Estimation for Volunteer Panel Web Surveys Using Propensity Score Adjustment and Calibration Adjustment
A combination of propensity score and calibration adjustment is shown to reduce bias in volunteer panel Web surveys. In this combination, the design weights are adjusted by propensity scores to correct for selection bias due to nonrandomized sampling. These adjusted weights are then calibrated to control totals for the target population and correct for coverage bias. The final set of weights is comprised of multiple components, and the estimator …
Estimating Propensity Adjustments for Volunteer Web Surveys
Panels of persons who volunteer to participate in Web surveys are used to make estimates for entire populations, including persons who have no access to the Internet. One method of adjusting a volunteer sample to attempt to make it representative of a larger population involves randomly selecting a reference sample from the larger population. The act of volunteering is treated as a quasi-random process where each person has some probability of vo…
Validation of a Diary Measure of Children's Physical Activities
This study compares levels of physical activity of 9–14-year-old children from a self-reported time diary with those measured using an accelerometer. Children (N=92) wore an accelerometer for one weekend day and completed a 24-hour time diary for that day. The time children spent in moderate to vigorous physical activity from time diaries was moderately highly correlated with the measured results. Self-reported and objective measures of in tensit…
Estimation of Laspeyres Price Indexes Using the Prediction Approach for Finite Population Sampling
Estimators of chain and fixed-base Laspeyres price indexes are studied using the prediction approach to finite population sampling. The estimators include some that are based on those used in several U.S. government index programs and others derived from prediction models. Biases and variances of the estimators are studied for a case in which the reference period index weights are unknown for nonsample items. Under a model for a one-period price …
A Class of Multiplicative Estimators of Laspeyres Price Indexes
Publication of indexes measuring changes in prices of retail, wholesale, export, and import items is an important part of many governmental statistics programs. One form of price index that is often used is the fixed-base Laspeyres, in which a fixed market basket of goods is priced over time. This article introduces a new class of multiplicative estimators of Laspeyres indexes. The optimum within the class is derived for long-term price change an…
Variance Estimation for Price Indexes From a Two-Stage Sample With Rotating Panels
Estimation of price indexes in the United States is generally based on complex rotating panel surveys. The sample for the Consumer Price Index, for example, is selected in three stages—geographic areas, establishments, and individual items—with 20% of the sample being replaced by rotation each year. At each period, a time series of data is available for use in estimation. This article examines how to best combine data for estimation of long-term …
Validation of a Diary Measure of Children's Physical Activities
This study compares levels of physical activity of 9–14-year-old children from a self-reported time diary with those measured using an accelerometer. Children (N=92) wore an accelerometer for one weekend day and completed a 24-hour time diary for that day. The time children spent in moderate to vigorous physical activity from time diaries was moderately highly correlated with the measured results. Self-reported and objective measures of in tensit…
Estimation for Volunteer Panel Web Surveys Using Propensity Score Adjustment and Calibration Adjustment
A combination of propensity score and calibration adjustment is shown to reduce bias in volunteer panel Web surveys. In this combination, the design weights are adjusted by propensity scores to correct for selection bias due to nonrandomized sampling. These adjusted weights are then calibrated to control totals for the target population and correct for coverage bias. The final set of weights is comprised of multiple components, and the estimator …
Estimating Propensity Adjustments for Volunteer Web Surveys
Panels of persons who volunteer to participate in Web surveys are used to make estimates for entire populations, including persons who have no access to the Internet. One method of adjusting a volunteer sample to attempt to make it representative of a larger population involves randomly selecting a reference sample from the larger population. The act of volunteering is treated as a quasi-random process where each person has some probability of vo…
Practical Tools for Designing and Weighting Survey Samples
Practical Tools for Designing and Weighting Survey Samples
Survey Weights
Practical Tools for Designing and Weighting Survey Samples
Computer Science (8 works) · Mathematics (6 works) · Statistics (6 works) · Econometrics (5 works) · Estimator (5 works) · Survey Methodology and Nonresponse (4 works) · Economics (3 works) · Economics of Agriculture and Food Markets (3 works) · Mathematical statistics (3 works) · Price index (3 works)