Description:
While preparing the Malaria slide/RDT test, the corresponding incentive is generated when the result is selected as Positive, but the incentive is not generated when the result is selected as Negative.

Steps to Reproduce:

1. Open the Malaria Slide/RDT Test module.
2. Enter the required test details.
3. Select the Negative result.
4. Submit/save the test.
5. Check the Incentive module.

Actual Result:
No incentive is generated when the Negative result is selected.

Expected Result:
The corresponding incentive should be generated for both Positive and Negative results when the RDT test is submitted.