If the sequential lineup is inferior, this has important implications for procedural fairness in those jurisdictions that currently rely on it. This is consistent with diagnostic feature detection theory (DFDT), which attributes this difference to the greater ability of witnesses presented with a simultaneous lineup to compare different items and to isolate features that are uniquely shared by the perpetrator and the target item. Contrary to prior consensus, recent research employing signal detection measures has reported that simultaneous lineups may be superior to sequential lineups.
Sequential lineups are currently used by police jurisdictions in the USA, Canada and the United Kingdom. We discuss the implications of these results for the diagnostic feature detection theory and other kinds of sequential lineups used in current jurisdictions. We found that although responses tended to be more conservative for sequential lineups there was little or no difference in underlying discriminability between the two procedures. We fit the models to the corpus of studies originally described by Palmer and Brewer (2012, Law and Human Behavior, 36(3), 247–255), to data from a new experiment and to eight recent studies comparing simultaneous and sequential lineups. In this study we developed models of simultaneous and sequential lineup presentations and used these to compare these procedures in terms of underlying discriminability and response bias, thereby testing a key prediction of diagnostic feature detection theory, that underlying discriminability should be greater for simultaneous than for stopping-rule sequential lineups. We argue that resolution of this debate requires the development and application of appropriate measurement models. It also enables researchers to test for cohort effects, which is often not possible in a usual longitudinal design.Debate regarding the best way to test and measure eyewitness memory has dominated the eyewitness literature for more than 30 years. Regarding this, what is a sequential study design? And because almost every science has someone who cleverly combines things, we have a sequential design, also sometimes referred to as a cross-sequential design, which is defined as a combination of longitudinal and cross-sectional designs, by following several differently aged cohorts over time.Why do Developmentalists use cross sequential research?A key advantage using cross-sequential designs is that it allows researchers to examine multiple age groups in a short period of time, compared to longitudinal designs. Such studies essentially are a combination of a longitudinal design and a cross-sectional design. an experimental design in which multiple measures are taken over a period of time from two or more groups of different ages (birth cohorts). A longitudinal study will study this same group over a long term (years or even decades) to see how their lives are affected.Beside above, what is a cohort sequential study in psychology? cohort-sequential design. People also ask, what is a cross sequential study in psychology?A cross-sequential design is a method used in research that combines a longitudinal design as well as a cross-sectional design.
#Sequential research full
Also called cross-sequential study.Click to see full answer. It is thus a combination of a cross-sectional design and a longitudinal design. a study in which two or more groups of individuals of different ages are directly compared over a period of time.
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