Andrew M Smith
Biographic Data
| ID | 3596587 |
|---|---|
| NAME | Andrew M Smith |
| GIVEN NAMES | Andrew M |
| FAMILY NAME | Smith |
| SIGNATURE | SMITH A M |
| AFFILIATIONS | Iowa State University |
| ORCID | 0000-0003-3854-8525 |
| VERIFIED | Yes |
| TOTAL WORKS | 16 |
| TOTAL CITATIONS | 25 |
| AUTHOR COUNT | 16 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1997 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Pre- versus post-Covid-19 pandemic comparison of kindergarten teacher-reported child development in multiple Canadian jurisdictions
Little is known so far about the impact of the COVID-19 pandemic on young children. We assessed the effect of the pandemic on pre-existing developmental trends in this population-level, repeated cross-sectional cohort design study of child development at school entry, measured with the kindergarten teacher-completed Early Development Instrument (EDI) in the 10 years prior to the onset of the COVID-19 pandemic and two years after. Individual EDI d…
The rule out procedure: A signal-detection-informed approach to the collection of eyewitness identification evidence
Lay (mis)perceptions of suspect-identification accuracy from biased and unbiased lineups
Suspect identifications from unbiased lineups (fair lineups) are more accurate than suspect identifications from biased lineups (Wixted & Wells, 2017). We examined whether laypersons were sensitive to the fact that suspect-identification accuracy is higher for unbiased than for biased lineups. Laypersons were presented with biased and unbiased lineups, told who the witness identified, and asked to rate the likely accuracy of the identification. O…
Providing witnesses with an option to say “I’m not sure” to a showup neither improves classification performance nor the reliability of suspect identifications
Contrary to our prediction, we found no evidence that an opt-out option improves performance from a showup procedure, which is consistent with past research examining opt-out options with lineup procedures. (PsycInfo Database Record (c) 2021 APA, all rights reserved)
Evaluating the claim that high confidence implies high accuracy in eyewitness identification
Distinguishing Between Investigator Discriminability and Eyewitness Discriminability: A Method for Creating Full Receiver Operating Characteristic Curves of Lineup Identification Performance
The conceptual frameworks provided by both the lineups-as-experiments analogy and signal detection theory have proven important to understanding how eyewitness lineups work. The lineups-as-experiments analogy proposes that when investigators use a lineup procedure, they are acting as experimenters and should therefore follow the same tried-and-true procedures that experimenters follow when executing an experiment. Signal detection theory offers a…
Enhanced flood risk with 1.5 °C global warming in the Ganges–Brahmaputra–Meghna basin
Flood hazard is a global problem, but regions such as south Asia, where people’s livelihoods are highly dependent on water resources, can be affected disproportionally. The 2017 monsoon flooding in the Ganges–Brahmaputra–Meghna (GBM) basin, with record river levels observed, resulted in ∼1200 deaths, and dramatic loss of crops and infrastructure. The recent Paris Agreement called for research into impacts avoided by stabilizing climate at 1.5 °C …
A benefit–cost analysis of floodplain land acquisition for US flood damage reduction
Estimates of present and future flood risk in the conterminous United States
Past attempts to estimate rainfall-driven flood risk across the US either have incomplete coverage, coarse resolution or use overly simplified models of the flooding process. In this paper, we use a new 30 m resolution model of the entire conterminous US with a 2D representation of flood physics to produce estimates of flood hazard, which match to within 90% accuracy the skill of local models built with detailed data. These flood depths are combi…
A first collective validation of global fluvial flood models for major floods in Nigeria and Mozambique
Global flood models (GFMs) are becoming increasingly important for disaster risk management internationally. However, these models have had little validation against observed flood events, making it difficult to compare model performance. In this paper, we introduce the first collective validation of multiple GFMs against the same events and we analyse how different model structures influence performance. We identify three hydraulically diverse r…
Compatibility of Atmospheric 14 CO 2 Measurements: Comparing the Heidelberg Low-Level Counting Facility to International Accelerator Mass Spectrometry (AMS) Laboratories
Combining atmospheric Δ 14 CO 2 data sets from different networks or laboratories requires secure knowledge on their compatibility. In the present study, we compare Δ 14 CO 2 results from the Heidelberg low-level counting (LLC) laboratory to 12 international accelerator mass spectrometry (AMS) laboratories using distributed aliquots of five pure CO 2 samples. The averaged result of the LLC laboratory has a measurement bias of –0.3±0.5‰ with respe…
An examination of showups conducted by law enforcement using a field-simulation paradigm
While there is a growing body of research examining the relatively cold, cognitive decision-making components of showups, few attempts have been made to capture the hot affective components of showups that are thought to exacerbate the suggestiveness of the procedure. In 3 simulated-field experiments, we partnered with law enforcement to examine how participants who were led to believe they were involved in an actual criminal investigation (Field…
The Roman Aqaba Project Final Report, Volume 1: The Regional Environment and the Regional Survey
Volume 1: "This first of three projected volumes of the project's final report focuses on the regional environment and the regional survey. Analysis of the environment employs a wide range of evidence to analyze the physiography, geology, soils, seismic history, climate, and natural resources. Various lines of evidence are employed to reconstruct the paleoclimate, which seems to have remained essentially hyperarid since early historical times. Th…
Initial Results of an Intercomparison of AMS-Based Atmospheric 14 CO 2 Measurements
This article presents results from the first 3 rounds of an international intercomparison of measurements of Δ 14 CO 2 in liter-scale samples of whole air by groups using accelerator mass spectrometry (AMS). The ultimate goal of the intercomparison is to allow the merging of Δ 14 CO 2 data from different groups, with the confidence that differences in the data are geophysical gradients and not artifacts of calibration. Eight groups have participa…
Comparison of Radiocarbon Ages from Different Organic Fractions in Tropical Peat Cores: Insights from Kalimantan, Indonesia
Various organic fractions of an Indonesian tropical peat deposit were dated using radiocarbon accelerator mass spectrometry (AMS). Four different depth layers, deposited during the last 28,000 14 C yr, were analyzed and the data compared to bulk sample analyses. The pollen extracts consistently produced the oldest dates. The bulk samples ( 14 C yr) in the oldest peat material. We interpret this to be a consequence of the input of organic matter o…
The Southeast Araba Archaeological Survey: A Preliminary Report of the 1994 Season
Despite several past explorations of Wadi Araba, the southeast sector of the valley has remained largely terra incognita. This lack of exploration has created a significant gap in general knowledge of the archaeological history of the valley. Hence, any discussions of the historical geography of Wadi Araba are necessarily limited, particularly in a regional context. The first season of the Roman Aqaba Project's Southeast Araba Archaeological Surv…
Comparison of Radiocarbon Ages from Different Organic Fractions in Tropical Peat Cores: Insights from Kalimantan, Indonesia
Various organic fractions of an Indonesian tropical peat deposit were dated using radiocarbon accelerator mass spectrometry (AMS). Four different depth layers, deposited during the last 28,000 14 C yr, were analyzed and the data compared to bulk sample analyses. The pollen extracts consistently produced the oldest dates. The bulk samples ( 14 C yr) in the oldest peat material. We interpret this to be a consequence of the input of organic matter o…
Initial Results of an Intercomparison of AMS-Based Atmospheric 14 CO 2 Measurements
This article presents results from the first 3 rounds of an international intercomparison of measurements of Δ 14 CO 2 in liter-scale samples of whole air by groups using accelerator mass spectrometry (AMS). The ultimate goal of the intercomparison is to allow the merging of Δ 14 CO 2 data from different groups, with the confidence that differences in the data are geophysical gradients and not artifacts of calibration. Eight groups have participa…
Compatibility of Atmospheric 14 CO 2 Measurements: Comparing the Heidelberg Low-Level Counting Facility to International Accelerator Mass Spectrometry (AMS) Laboratories
Combining atmospheric Δ 14 CO 2 data sets from different networks or laboratories requires secure knowledge on their compatibility. In the present study, we compare Δ 14 CO 2 results from the Heidelberg low-level counting (LLC) laboratory to 12 international accelerator mass spectrometry (AMS) laboratories using distributed aliquots of five pure CO 2 samples. The averaged result of the LLC laboratory has a measurement bias of –0.3±0.5‰ with respe…
Lay (mis)perceptions of suspect-identification accuracy from biased and unbiased lineups
Suspect identifications from unbiased lineups (fair lineups) are more accurate than suspect identifications from biased lineups (Wixted & Wells, 2017). We examined whether laypersons were sensitive to the fact that suspect-identification accuracy is higher for unbiased than for biased lineups. Laypersons were presented with biased and unbiased lineups, told who the witness identified, and asked to rate the likely accuracy of the identification. O…
Evaluating the claim that high confidence implies high accuracy in eyewitness identification
A benefit–cost analysis of floodplain land acquisition for US flood damage reduction
An examination of showups conducted by law enforcement using a field-simulation paradigm
While there is a growing body of research examining the relatively cold, cognitive decision-making components of showups, few attempts have been made to capture the hot affective components of showups that are thought to exacerbate the suggestiveness of the procedure. In 3 simulated-field experiments, we partnered with law enforcement to examine how participants who were led to believe they were involved in an actual criminal investigation (Field…
The rule out procedure: A signal-detection-informed approach to the collection of eyewitness identification evidence
The Southeast Araba Archaeological Survey: A Preliminary Report of the 1994 Season
Despite several past explorations of Wadi Araba, the southeast sector of the valley has remained largely terra incognita. This lack of exploration has created a significant gap in general knowledge of the archaeological history of the valley. Hence, any discussions of the historical geography of Wadi Araba are necessarily limited, particularly in a regional context. The first season of the Roman Aqaba Project's Southeast Araba Archaeological Surv…
Comparison of Radiocarbon Ages from Different Organic Fractions in Tropical Peat Cores: Insights from Kalimantan, Indonesia
Various organic fractions of an Indonesian tropical peat deposit were dated using radiocarbon accelerator mass spectrometry (AMS). Four different depth layers, deposited during the last 28,000 14 C yr, were analyzed and the data compared to bulk sample analyses. The pollen extracts consistently produced the oldest dates. The bulk samples ( 14 C yr) in the oldest peat material. We interpret this to be a consequence of the input of organic matter o…
Initial Results of an Intercomparison of AMS-Based Atmospheric 14 CO 2 Measurements
This article presents results from the first 3 rounds of an international intercomparison of measurements of Δ 14 CO 2 in liter-scale samples of whole air by groups using accelerator mass spectrometry (AMS). The ultimate goal of the intercomparison is to allow the merging of Δ 14 CO 2 data from different groups, with the confidence that differences in the data are geophysical gradients and not artifacts of calibration. Eight groups have participa…
The Roman Aqaba Project Final Report, Volume 1: The Regional Environment and the Regional Survey
Volume 1: "This first of three projected volumes of the project's final report focuses on the regional environment and the regional survey. Analysis of the environment employs a wide range of evidence to analyze the physiography, geology, soils, seismic history, climate, and natural resources. Various lines of evidence are employed to reconstruct the paleoclimate, which seems to have remained essentially hyperarid since early historical times. Th…
Compatibility of Atmospheric 14 CO 2 Measurements: Comparing the Heidelberg Low-Level Counting Facility to International Accelerator Mass Spectrometry (AMS) Laboratories
Combining atmospheric Δ 14 CO 2 data sets from different networks or laboratories requires secure knowledge on their compatibility. In the present study, we compare Δ 14 CO 2 results from the Heidelberg low-level counting (LLC) laboratory to 12 international accelerator mass spectrometry (AMS) laboratories using distributed aliquots of five pure CO 2 samples. The averaged result of the LLC laboratory has a measurement bias of –0.3±0.5‰ with respe…
An examination of showups conducted by law enforcement using a field-simulation paradigm
While there is a growing body of research examining the relatively cold, cognitive decision-making components of showups, few attempts have been made to capture the hot affective components of showups that are thought to exacerbate the suggestiveness of the procedure. In 3 simulated-field experiments, we partnered with law enforcement to examine how participants who were led to believe they were involved in an actual criminal investigation (Field…
Estimates of present and future flood risk in the conterminous United States
Past attempts to estimate rainfall-driven flood risk across the US either have incomplete coverage, coarse resolution or use overly simplified models of the flooding process. In this paper, we use a new 30 m resolution model of the entire conterminous US with a 2D representation of flood physics to produce estimates of flood hazard, which match to within 90% accuracy the skill of local models built with detailed data. These flood depths are combi…
A first collective validation of global fluvial flood models for major floods in Nigeria and Mozambique
Global flood models (GFMs) are becoming increasingly important for disaster risk management internationally. However, these models have had little validation against observed flood events, making it difficult to compare model performance. In this paper, we introduce the first collective validation of multiple GFMs against the same events and we analyse how different model structures influence performance. We identify three hydraulically diverse r…
Enhanced flood risk with 1.5 °C global warming in the Ganges–Brahmaputra–Meghna basin
Flood hazard is a global problem, but regions such as south Asia, where people’s livelihoods are highly dependent on water resources, can be affected disproportionally. The 2017 monsoon flooding in the Ganges–Brahmaputra–Meghna (GBM) basin, with record river levels observed, resulted in ∼1200 deaths, and dramatic loss of crops and infrastructure. The recent Paris Agreement called for research into impacts avoided by stabilizing climate at 1.5 °C …
A benefit–cost analysis of floodplain land acquisition for US flood damage reduction
Distinguishing Between Investigator Discriminability and Eyewitness Discriminability: A Method for Creating Full Receiver Operating Characteristic Curves of Lineup Identification Performance
The conceptual frameworks provided by both the lineups-as-experiments analogy and signal detection theory have proven important to understanding how eyewitness lineups work. The lineups-as-experiments analogy proposes that when investigators use a lineup procedure, they are acting as experimenters and should therefore follow the same tried-and-true procedures that experimenters follow when executing an experiment. Signal detection theory offers a…
Providing witnesses with an option to say “I’m not sure” to a showup neither improves classification performance nor the reliability of suspect identifications
Contrary to our prediction, we found no evidence that an opt-out option improves performance from a showup procedure, which is consistent with past research examining opt-out options with lineup procedures. (PsycInfo Database Record (c) 2021 APA, all rights reserved)
Evaluating the claim that high confidence implies high accuracy in eyewitness identification
The rule out procedure: A signal-detection-informed approach to the collection of eyewitness identification evidence
Lay (mis)perceptions of suspect-identification accuracy from biased and unbiased lineups
Suspect identifications from unbiased lineups (fair lineups) are more accurate than suspect identifications from biased lineups (Wixted & Wells, 2017). We examined whether laypersons were sensitive to the fact that suspect-identification accuracy is higher for unbiased than for biased lineups. Laypersons were presented with biased and unbiased lineups, told who the witness identified, and asked to rate the likely accuracy of the identification. O…
Pre- versus post-Covid-19 pandemic comparison of kindergarten teacher-reported child development in multiple Canadian jurisdictions
Little is known so far about the impact of the COVID-19 pandemic on young children. We assessed the effect of the pandemic on pre-existing developmental trends in this population-level, repeated cross-sectional cohort design study of child development at school entry, measured with the kindergarten teacher-completed Early Development Instrument (EDI) in the 10 years prior to the onset of the COVID-19 pandemic and two years after. Individual EDI d…
Geography (8 works) · Computer Science (6 works) · Environmental Science (6 works) · Geology (6 works) · Psychology (6 works) · Deception detection and forensic psychology (4 works) · Flood myth (4 works) · Flood Risk Assessment and Management (4 works) · Memory Processes and Influences (4 works) · Social Psychology (4 works)