Cognitive Psychology Commons^™

The Influence Of A Showup Identification On A Subsequent Witness Description, Kelsey Lynne Hess

FIU Electronic Theses and Dissertations

Showups account for 30%-77% of initial identification procedures conducted by police (Flowe et al., 2001; Gonzalez et al., 1993; McQuiston & Malpass, 2001). Unlike lineups, showups are typically administered within a few hours of the crime event. The administration of a showup, due to its timing, is likely to precede a more formal police interview. The showup may introduce new characteristics of the suspect’s physical appearance to the witness. Any new characteristics inconsistent with the perpetrator’s appearance at the crime can be considered misinformation, which has the potential to contaminate witness recall. Although the contaminating effects of a showup have …

The Effects Of Cognitive Bias, Examiner Experience, And Stimulus Material On Forensic Evidence Analysis, Michelle M. Pena

FIU Electronic Theses and Dissertations

Forensic examiners have come under scrutiny in recent years because of high profile exoneration cases that have highlighted the negative impact contextual bias can have on investigations including forensic evidence analyses. This has led to several proposed solutions to reduce the effects of bias including blind testing and redacting task-irrelevant information. However, practitioners have not been receptive to such recommendations because of the limitations found in past research, such as the use of untrained undergraduate students to examine complex pieces of forensic evidence (e.g., fingerprints). The current study thus had the following aims: (a) examine the effect of contextual bias …

Eliciting A Perpetrator Description Using The Cognitive Interview: Influences On Investigative Utility, Geri Satin

FIU Electronic Theses and Dissertations

The Cognitive Interview (CI) has been shown in over one hundred studies to enhance eyewitness recall. However, no study has explored whether the CI improves police job performance. The current study was the first to test the practical value of the CI in a criminal investigation, testing participants’ performance on key police tasks using either a perpetrator description elicited from a CI or from a standard police interview (SI).

In an earlier study, student witnesses were exposed to a simulated robbery and were then interviewed using either a CI or an SI to elicit a description of the robber (comprised …

Comparison Of Linear Functions In Middle Grades Textbooks From Singapore And The United States, Linda D. Fowler

FIU Electronic Theses and Dissertations

Many U.S. students do not perform well on mathematics assessments with respect to algebra topics such as linear functions, a building-block for other functions. Poor achievement of U.S. middle school students in this topic is a problem.

U.S. eighth graders have had average mathematics scores on international comparison tests such as Third International Mathematics Science Study, later known as Trends in Mathematics and Science Study, (TIMSS)-1995, -99, -03, while Singapore students have had highest average scores. U.S. eighth grade average mathematics scores improved on TIMMS-2007 and held steady onTIMMS-2011. Results from national assessments, PISA 2009 and 2012 and National Assessment …