nortje2012

A data file containing lineup data for 3 independent lineups.
 133 rows x 3 columns. Each lineup trial consisted of 133 mock witnesses
 &amp; 8 lineup members.
<ul>
<li>: Target position for lineup 1 is 3</li>
<li>: Target position for lineup 2 is 6</li>
<li>: Target position for lineup 3 is 2</li>
</ul>

datasets

Since the early 1970s eyewitness testimony researchers have recognised the
importance of estimating properties such as lineup bias (is the lineup biased against
the suspect, leading to a rate of choosing higher than one would expect by chance?),
and lineup size (how many reasonable choices are in fact available to the witness?
A lineup is supposed to consist of a suspect and a number of additional members,
or foils, whom a poor-quality witness might mistake for the perpetrator). Lineup
measures are descriptive, in the first instance, but since the earliest articles in
the literature researchers have recognised the importance of reasoning inferentially
about them. This package contains functions to compute various properties of
laboratory or police lineups, and is intended for use by researchers in forensic
psychology and/or eyewitness testimony research. Among others, the r4lineups package
includes functions for calculating lineup proportion, functional size, various
estimates of effective size, diagnosticity ratio, homogeneity of the diagnosticity
ratio, ROC curves for confidence x accuracy data and the degree of similarity of
faces in a lineup.

Colin Tredoux

r4lineups

Statistical Inference on Lineup Fairness

Tamsyn Naylor

nortje2012 function

An object of class <code>tbl_df</code> (inherits from <code>tbl</code>, <code>data.frame</code>) with 133 rows and 3 columns.

nortje2012: nortje2012

Description

Usage

Arguments

Format