The phrase "a more effective mode" is correct and usable in written English.
You can use it when discussing methods or approaches that are improved in terms of efficiency or effectiveness compared to others.
Example: "After analyzing the results, we concluded that a more effective mode of communication would enhance team collaboration."
Alternatives: "a better method" or "a more efficient approach."
DA generally proved to be a more effective mode of learning.
For instance, a study of 147 psychology students reported that video was a more effective mode of instruction than text for presenting real-life situations in order to enhance the learner's comprehension, retention and satisfaction (Choi and Johnson 2007).
Thus, a more effective mode of therapy for NPC is urgently needed.
Nevertheless, this study provided data on the use of osmotic agents and suggested a more effective mode of administration of osmotic agents, supporting continuous rather than bolus infusions.
On the other hand, the TFs that negatively regulate hydrolytic enzyme gene transcription, such as ACE1 and CREI, showed a lower level of expression, compared to the positive-acting TFs, or were not transcriptionally modulated depending upon the carbon source, suggesting that these TFs may act in a cooperative manner or have a more effective mode of action.
I-mode service access sites are written in compact-HTML, a more effective way to handle wireless data, some say.
As a possibly less injurious and more effective mode of ventilation, CENPV appears especially attractive when the potential to eliminate endotracheal intubation is taken into consideration.
We must improve our ideas and ways of thinking more quickly and form a broader international vision, with more effective modes of expression and behavior.
And Lecturer Maggie Hall from the University of Sydney wrote in The Conversation that a "focus on the medication of child sexual abusers detracts from other potentially more effective modes of management for the majority of offenders".
Thinking about Crime (Wilson 1975) argued much the same case, with particular emphasis put on more effective modes of policing.
Concepts that didn't work were quickly abandoned and other more effective modes were identified by rapid trial and error.
