This resource is aimed at advanced biology students and includes two differentiated practical schedules for the observation of phototactic behaviour in blowfly larvae (maggotts).
Both schedules include a brief introduction to the nature of taxis behaviour, followed by details of the practical task. A table to collate data is provided, followed by a step-by-step method of using the chi-squared test to assess statistical significance.
The worksheet for higher ability students also contains extra challenge questions on the reason for statistical testing and the rationale for using chi-squared.
Key words: behaviour, blowfly larvae, maggotts, statistics, phototaxis, light, response, chi-squared