In order to complete the task both Rebecca and Martin have to coordinate their efforts and this is example of Reciprocal task interdependence.
In order to complete any task there is a need of contribution by all the members of the group. The project should not be done by only one individual of the group instead all the members should do their part of work so that the project gets completed in time. The same happens in case of Rebecca and Martin where they both have to help and coordinate each other's work in order to complete the project on time. In the Reciprocal interdependence method all the members of the task are dependent on each others work but they coordinate with each other to complete the project or task.
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