Effectively significa con eficacia, eficazmente.
No significa efectivamente, que se traduce por indeed, that's right, sure enough.
EXAMPLES:
- The doctor told him that his illness was difficult to treat effectively. El médico le dijo que su enfermedad era difícil de tratar eficazmente.
- Do you communicate effectively with your students in class? ¿Se comunica eficazmente con sus alumnos en clase?
- To be convincing, you have to be able to communicate what you want to say effectively. Para ser convincente, hay que saber comunicar con eficacia lo que se quiere decir.