The phrase 'effective on that' is correct and can be used in written English.
You could use it when you want to describe something that is effective in a particular situation. Example: "These new procedures have been very effective on that project."
While Ibaka is not an offensive force, he is effective on that end of the floor.
Two former soldiers from opposing parties – Labour's Dan Jarvis and the Conservative Tom Tugendhat – were effective on that front.
The portrait of Berence is not altogether coherent, but it is almost more effective on that account.
The campaign that best pushes the limits of what is possible and effective on that battlefield usually wins.
Next week's episode, "Paint Cart 5000 vs. The Mondo Spider," which features a smarmy new lieutenant, is particularly effective on that topic.
Thanks to the Security and Exchange Commission SECC), highly anticipated Title III rule named "Crowdfunding" under the JOBS Act becomes effective on that day.
The results showed that surface treatment with ADM was effective on samples that had been exposed to boiling water for oxide growth prior to treatment with ADM.
Either way, conditioners that advertise themselves as treatments for "damaged" hair will be effective on hair that's dry both because of heat exposure and natural causes.
But repeated attempts to date its ancient timbers with tree ring analysis failed, in part because the technique is less effective on trees that have grown in a wet climate.
These efforts were effective on beaches that were not too thickly covered in oil.
Cytotoxic drugs, such as taxanes, which target microtubules, are believed to be more effective on cells that proliferate rapidly.
