A bio-acoustician investigates the effect of different types of ambient anthropogenic noise on the echolocation navigation efficiency of the common pipistrelle bat (Pipistrellus pipistrellus) using an independent groups design.
In Setup Alpha, a group of bats is released into a flight corridor with simulated low-frequency traffic rumble (at 60 dB).
In Setup Beta, a different group of bats is released into the exact same flight corridor but with simulated high-frequency wind-turbine hum (at 60 dB).
The researcher records the time taken (in seconds) by each bat to successfully navigate around an obstacle array of suspended wires.
Identify the dependent variable in this experiment.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
