When conducting training sessions at your company, do you believe it's better to have one-to-one training sessions or training for an entire group?

The answer to this would depend on the type of training that is being conducted. If it is a hardcore technical topic - the class size must not exceed 12-15 participants to ensure real learning happens. For soft skills, you might up the maximum number to 20, but not more. If you are worried about costs - consider arranging a 'Train The Trainer' program on the topic with an external trainer. Then you will have a full batch of your own trainers who know the topic and can conduct any number of batches you need - for free! 

I prefer to arrange training for the group (not more than 20 staff at a time).

With the group you answer more cross questions

More experiences shared by group members that let the trainer also improve sometimes.

Sometimes one member doesn't get your point and get it easily when explained by other members.

You have witness that you have provided good or bad training. 

It all depends, on the one hand one-to-one training is used for sessions like QM, IT, HR, some top managements programs, inductions, orientations,... and other training doesn't related to party discussions or communications. So it is obviously very useful in that case.

On the other hand group or party training sometimes are a must when you give training like communication skills, negotiation, team building, presentation, .... and so and forth.

So, from trainee's perspective both are important but depends. From trainer's perspective one-to-one almost more relax, cozy, and quiet. 

Training takes several forms, prompt an individual training for a particular person, and from the collective training to a group of people and that as required by the company and the position of interest.

I prefer group training sessions. Twice when I was newly hired at a company, I participated in group training sessions. Both times it helped me to feel comfortable in the new company and to get to know my co-workers. I learned a lot, not only from the instructors, but also from the other trainees.

Plus, group training saves the company time and money.  I think that is a great combination.

Adult professionals should be mature enough to stay focused on the training and not to be chatting among themselves. If they are not able to do this, perhaps they need some professional development along those lines, or you may need new staff. I have conducted group trainings myself, and my staff never had this problem.

I think, " Training", should be given to " Entire Group", not , one to one .

It may depend on the training... Theory or lecture can be best done as a group but practical/actual training can be best learned through one on one session.

I would prefer to conduct such training sessions for entire group rather than one to one,to enhance communications among attending collegeus, share individuals' experience through positive discussions and   to exchange ideas.

It depends on the type of the training. If the training which I intend to conduct requires more demonstrations and practical exercises, then the One on One training is the best for the trainee to effectively understand the subject. However,  if does not require any demonstration or practical exercises,  I believe it would be useful for Group.  

A blend of both is the best solution. In one on one training sessions you can target the weaknesses of the candidate whereas in group sessions the candidate will be more cautious of what he/she says as there are other people watching. This is closer to a real life situation

It depends on the training subject and contents, but in general if the training contents are mainly or only "practical",  I do believe that one-to-one training session, will be more efficient, whereas and in case the the training contains are mainly or only "theoretical", I do believe that it is much better to conduct  entire group session to save both time and cost.