lineup_prop_tab {r4lineups}

Lineup proportion

Description

Computes the proportion of mock witnesses identifying a particular lineup member

Usage

lineup_prop_tab(lineup_table, target_pos)

Arguments

lineup_table

A table of lineup choices

target_pos

A scalar, representing target position in lineup. Must be declared by user

Value

Returns a proportion indicating the frequency with which a lineup member was selected

References

Wells, G. L.,Leippe, M. R., & Ostrom, T. M. (1979). Guidelines for empirically assessing the fairness of a lineup. Law and Human Behavior, 3(4), 285-293.

Examples

#Data:
lineup_vec <- round(runif(100, 1))
lineup_table <- table(lineup_vec)

#Call:
lineup_prop_tab(lineup_table, 3)
lineup_prop_tab(table(lineup_vec), 2)