Thoughts on the items

So I started thinking about how groups with sucsessful performance can be characterized and came up with few features that I think are important for achieving group goals. I based my items on them and added some examples from different domains (in fact, 3 of them in which I am most proficient at the moment) to illustrate my thinking. 

1. I am confident that I can clearly and effectively communicate my thoughts and ideas to other members of our group so that they can understand me. 

[effective communication is crucial in group desicion making]

e.g. in sports: signaling your team players where you're going to send the ball next.

e.g. in MMO games: explaining your strategy about capturing an enemy base.

e.g. in music band: explaining why a specific music move is not good in this song.

2. I believe that all members of our group are competent in the group roles assigned to them.

[if you're sure that others can perform well on their particular tasks, you will be more confident in successful performance]

e.g. in sports: the setter knows that the libero will pass the ball after the enemy's attack correctly and moves to a certain position waiting for the ball.

e.g. in MMO games: jungle player knows that top laner playes well and does not assist him focusing on enemy jungler instead.

e.g. in music band: a jazzman improvises knowing that the other musicians will cath up with him.

3. I am confident that out group members value different points of view and disagreements as a way to construct a joint understanding of the problem.

[when you know that every opinion is considered, you will be more confident in successful performance]

e.g. in sports and MMO games: in discussing strategies of atacking the enemy team, all players feel free to contribute their ideas.

e.g. in music band: all band members express their views on the arrangmenet of a song.

4. I think that all members of our group can follow the established and agreed on ground norms.

[that way you know what to expect from communication and is more confident in its succesfull implementation]

e.g. in sports: all players come to trainings on time and do not interfere with each other's personal training process (for example, not occupy space needed for that).

e. g. in MMO games: players choose their roles in the beginning fo the game and do not change them throuough the game (if you're a toper, you can't go mid when the game begins); you don't roll the loot in WoW that you can't wear.

e.g. in music band: you come to rehearsals on time, pay your share for renting rehearsal spaces, and actively participate in making all music and management decisions. 

5. I am confident that our group can set specific goals, and plan and coordinate individual and joint actions to sucsessfully achieve these goals.

[when you're sure that goal and task management skills in the team are good, you will be more confident in successful performance]

e.g. in sports: players discuss what particular moves thwy want to practice and incorporate in their play, set the dates of trainings, and decide on who trains with who in pairs.

e.g. in MMO games: all players discuss how they will begin the game (eg, they can invade an enemy territory or stay at their own), how they will proceed later and what they will need to do to win the game).

e.g. in music band: the band decides on the deadline for finishing the song and who's going to work on what part particularly.

So you see, I grounded my items more in my own experience. Let me know what you think of it!