Does automation trust evolve from a leap of faith? An analysis using a reprogrammed pasteurizer simulation task.

Area of Science:

• Human-Computer Interaction
• Cognitive Psychology
• Automation and Control

Background:

• Trust is crucial for effective human-automation interaction in professional settings.
• A seminal 1996 study by Muir and Moray proposed a model of trust development: faith, dependability, predictability.
• Recent attempts to replicate this model have yielded inconsistent results, necessitating further investigation.

Purpose of the Study:

• To fully replicate the Muir and Moray (1996) study on human-machine trust development.
• To investigate if the original findings hold true with a specific focus on engineering students.
• To challenge and refine the widely accepted model of trust evolution in human-automation interaction.

Main Methods:

• Two experiments were conducted using a simulated pasteurizer task.
• Experiment 1 aimed for a full replication of Muir and Moray (1996).
• Experiment 2 replicated Experiment 1 with participants majoring in Engineering, mirroring the original study's demographic.

Main Results:

• Both experiments indicated that dependability was the primary initial predictor of trust.
• Trust later developed to include predictability and faith, contrary to the original hypothesis.
• The findings failed to support the Muir and Moray (1996) sequence of trust development (predictability to dependability to faith) or their initial faith-based finding.

Conclusions:

• The study challenges the established model of human-machine trust development.
• Dependability appears to be a more significant factor in initial trust for general users than previously suggested.
• Automation designers should prioritize dependability information in their designs to foster user trust.