in LPRC Reports

Spider Manuscript Hayes Strome 2017

Objective: This study examines differences in the efficacy of Alpha Two-alarm Spider Wrap (Spider
Wraps) anti-theft technology for reducing loss levels of different product types.

Methods: The study used a randomized controlled trial (RCT) design to test the effect of Spider Wraps
on in-store merchandise loss or shrink reduction for electric drills, teeth whitening strips, and electric
tooth brushes. 56 stores were used in this study (20 with electric drills, 16 with teeth whitening strips,
20 with electric toothbrushes), stratified in high, medium, and low shrink stores. Treatment was
assigned randomly within strata. Paired-sample t-tests were used to determine differences between
pre- and post-intervention loss between each treatment and control group. Odds ratios (OR) were used
to estimate effect size.

Results: Unit loss of electric drills was reduced 26% for stores using Spider Wraps as compared to control
stores. Unit loss of teeth whitening strips decreased by 23% for stores using Spider Wraps as compared
to control stores. There was no significant difference in unit loss for electric toothbrushes between
treatment and control stores.

Conclusion: While experimental research designs have been successfully used to test theft prevention
technology effectiveness in retail environments, these results are not always generalizable across
product types. Further research exploring differences in loss prevention efficacy across product type will
lend insight into how best to prevent loss for asset protection/loss protection professionals.

Key Words: Situational Crime Prevention; Product Protection; Experimental Criminology; Retail Theft;
Loss Prevention; Micro-environment; Modes of action