Navigation: Jump to content areas:


Pro Quality. Fan Perspective.
Login-facebook
Around SBN: Super Bowl Recipes: A Guide To The Perfect Game Day Menu

Raptors HQ Talks "Touchiness" with Dr. Michael Kraus

Continuing on this week's analytical theme, the HQ talks to the leader of a study looking at NBA player "touchiness" and how that correlated with team success...

 

Star-divide

Some of you may recall back in February that TrueHoop's Henry Abbott discussed a study on ESPN.com, where a team of researchers, led by recently "PhDed" Michael Kraus, examined the correlation between NBA player "touchiness" on the court, and team wins.

Interestingly, besides calling out the league's "touchiest teams," the Celtics and Lakers finished atop the league in this respect, their study also looked at individual players who were more prone to high-fives and fist bumps.  Of these individuals, the Toronto Raptors' Chris Bosh finished second behind only Kevin Garnett.

After reading the study, I thought it might be interesting to touch base with Dr. Kraus to get a full breakdown of the study, and in particular, how it might apply to Toronto going forward now that Mr. Bosh has moved on.

 

1.  RaptorsHQ - Recently Truehoop discussed the study you co-authored which examined correlations between NBA team "touchiness" and winning.  Tell us a bit about the study and its results.


Dr. Michael Kraus:  My colleagues and I at UC Berkeley were interested in determining whether teams can use touch to boost their performance? To examine this question, we watched NBA basketball games during the first months of the 2008-2009 NBA season, and recorded all the touching that players on the same team engaged in over the course of that single game (e.g., high fives, butt slaps, fist bumps, hugs). We then used these early-season touches to predict performance over  the course of the entire 2008-2009 season. Quite interestingly, teams that touched more, performed better, were more likely to reach the postseason, and won more games.

Another interesting thing we found: even when we accounted for how well teams played during the early season game coded for touch, how good the teams were expected to play during the season by experts from ESPN and NBA.com, and how much teams paid their players, touch early in the season still predicted performance over the course of the entire season.

2.  RHQ - It's an incredibly interesting idea, how did you come up with the premise?

MK:  My advisor (Dacher Keltner, Professor of Psychology and Director of the Greater Good Science Center) and I play basketball together in Berkeley on Fridays. It is a local pick-up game that goes on right before lunch. When we played together we couldn't help but notice how important those high fives were. Not just good plays either. For example, if I took a bad shot, or turned the ball over and someone still gave me a high five, I'd feel better about the team, and that made me more enthusiastic about playing with those guys. We figured that if touch mattered to us during games with strangers, the power of touch would be magnified in team settings where guys play together over the course of an entire season.



3.  RHQ - As we cover the Toronto Raptors, can you talk a bit about how they fared as a team and which of their players were the "touchiest?"


MK:  Your Raptors finished #18 in terms of total touch duration during the 2008-2009 season. Though the Raptors didn't finish high, Chris Bosh was the second most touchy player in the league, initiating what amounted to about 1/2 of all the touches engaged in by Raptor players. In this respect, Bosh asserted himself as one of the on-court leaders of the Raptors.



4.  RHQ - Do you have plans to do any follow-up work on this subject?


MK:  We're definitely planning future research. For example, we are currently conducting experimental studies where we vary whether or not teams touch each other, to determine if touch actually does cause improved performance (our initial study using the NBA, was correlational). In addition, we're interested in understanding if touch is a signal of leadership? and if the current findings will generalize from the court to the corporate meeting room?

 

5.  RHQ - Some might argue that teams that win and are "touchier" are so because they win - ie; these teams have on-court success and therefore are more willing to congratulate each other and have more opportunity to do so because of their in-game success.  How did you attempt to address that possibility?

MK:  We also were concerned about this. To account for it, what we did was we controlled for preseason expectations from NBA experts (e.g., preseason predictions made by NBA gms in the annual gm survey and sportswriters). What we found was these preseason experts were quite good at predicting which teams would do well this season, however, even while accounting for these predictions, teams that touched more at the start of the season still performed better. So what this analysis allows us to say is that we knew which teams were likely to be winning teams before the season started, but even when we account for knowing this, touch at the beginning of the season still tells us how a team is likely to perform.

Of course, to really, truly know that touch CAUSES better performance we need to do more than this analysis. We need to look at experiments and laboratory evidence of teams who engage in touch vs. teams that don't. This work is currently ongoing at our laboratory at Berkeley. I'll let you know how it turns out!



6.  RHQ - Any prognostications on the level of success of the Miami Heat's "super-team" based on your results?  Or what about Toronto minus its top emoting player; are any of the other current Raptors, players that were high on your "touchiness" results list?

MK:  The summer has been a truly exciting one for basketball and I am very interested in what the Heat will do this coming season. I think having Bosh in Miami is an especially important addition, in light of our data. I don't usually get a chance to talk about this, but both Lebron and Wade do not show up as high-level touchers. In fact, when you account for the number of minutes these guys play, they do very little touching in comparison to other players who play similar minutes. Now this could be due to each of those guys, on their previous teams, having to carry too much of the scoring load (they're both dialed in so much they can't worry about team cooperation), so maybe you'll see more of it from them this coming year. What I think is more likely is that Chris Bosh is going to be the glue-guy for that team, the rock that they can count on, the guy who will keep those other role players involved and together.

In terms of the Raptors new team, there wasn't any one individual high on our touch metric other than Bosh. I think this means that there is a clear opportunity for someone to fill this role for the team in the future. I think when a team loses someone who was such a vital part of their basketball play and their team chemistry it is really going to change the team's identity, and that can be a good thing going forward, but definitely, right now it is not clear who is going to be that leader.

 

A big thanks to Dr. Kraus for taking the time to talk with me about this and it might be quite interesting to touch base with him down the road on any further research.  His point about the Raptors is especially poignant because minus Bosh, the team really doesn't have a "team-face" any more. 

Is it Andrea BargnaniDeMar DeRozanJarrett Jack

One of these players, or someone else, will have to take the reigns next year in the Bosh "touchy" department and right now I'm not sure who I'd peg for the role.

However minus a defacto "head," perhaps we won't see any "one" individual attempt to be the on-court motivator, and perhaps that's one of the advantages of having the Young Gunz, an already tightly knit group, as the team's new core.  Players like Amir Johnson and Sonny Weems were quite congratulatory with teammates last year and hopefully that youthful enthusiasm spreads throughout the entire club.

On paper though, it's a big question mark at present, which probably explains why in the new edition of NBA Jam, Toronto's duo consists of Jose Calderon and Andrea Bargnani...

Comment 50 comments  |  0 recs  | 

Do you like this story?

Comments

Display:

I'm not sure I get this one

Of course teams will be “touchier” when they win. The frequency of high fives will obviously be higher after a made shot than a missed shot. Teams that make more shots will win more games…simple logic. I don’t buy the argument of controlling for preseason expectations. Teams that exceed those expectations are likely to be “touchier”, thus a self fulfilling prophesy.
It just feels that this study is flawed. Not saying that encouraging teammates isn’t important. It would have been more interesting if they would have based it on the percentage of time that a teammate is encouraged after a positive play seperated from after a negative play. Would teams that encourage each other more win more close games than other teams that make similar amount of good vs bad plays?

by cmrm123 on Aug 18, 2010 9:32 AM EDT reply actions  

Like he said, their study showed correlation, not causality.

Also, the Raptors were the 18th ranked touchy team, and one of the most efficient and successful offensive teams in the league – so your made buckets = high fives argument is clearly flawed.

by dhackett1565 on Aug 18, 2010 9:58 AM EDT up reply actions  

I disagree

He made a point to say when he played pickup that even if he made a bad play his teammates would give him a high five and made him feel better. Anyone who has played team sports can attest to this. I would completely agree that teams that have good chemistry touch more and in turn win more. I think this puts more ammo into the argument that Bosh was infact trying to lead, and that the rest of the team (especially Hedo) were just hampering the chemistry. I understand that this whole study could be debunked, but it does make sense. Any decent team that I have ever played on (in any sport) tended to be more touchy. Not just when we were winning, but also in losing.

by PNUTZ on Aug 18, 2010 10:48 AM EDT up reply actions  

I agree 100%

I’m not suggesting that chemistry and support of teammates are extremely important. In fact, I believe they are a key ingredient to team success. My point is, wouldn’t it have been great if the study had shown that. For example, would a player who missed a shot be more likely to make his next shot if he is given positive feedback from his teammates.

by cmrm123 on Aug 18, 2010 10:55 AM EDT up reply actions  

Control for more variables?

One variable that I would like to know if the study controlled for is how long has the team been together. I think players that have played together longer would tend to be “touchier” because they know each other more. Also, I would guess that teams with more veterans would be “touchier” because those vets tend to be more confident in general. Both having veterans and having players that have played together for a while can be big factors in winning. “Touchiness” in those cases could be more a symptom than a cause.

by DW19 on Aug 18, 2010 12:33 PM EDT up reply actions  

That’s a good point – usually in a causality study, one considers whether the touchiness caused the winning or the winning caused the touchiness.

But an equally likely possibility is that another factor (like you said) caused both of those other factors to occur.

by dhackett1565 on Aug 18, 2010 1:31 PM EDT up reply actions  

I merely used made buckets as an example. My point is that it should be obvious that there is a correlation. Players will get more excited when they make buckets, block shots, get steals, etc. So to me, the conclusion is interesting but somewhat obvious. What I would be more interested in is whether there is causality. I don’t doubt for a minute that teams that do a better job of supporting one another will achieve greater success….causality. I wasn’t trying to mock the study….just wished it had gone a step further and tried to prove the point. (In fairness, I haven’t read the study so perhaps it did delve into this).

by cmrm123 on Aug 18, 2010 10:50 AM EDT up reply actions  

I think you should reread question 5. The initial study just showed that touchiness correlated with success. It did not say whether it was the touchiness that lead to success or whether the success lead to touchiness. So what they did was try to control for success by using the predictive power of experts, which they also checked for accuracy.

by siggian on Aug 18, 2010 10:06 AM EDT up reply actions  

I like the point about “touchiness” after a bad shot or turnover in the answer to question two. I’m sure if you were going to come up with a ‘Chemistry Index’ for teams in the League, that would be a part of it for sure.

by RaptorsHQ - Defensive Stance on Aug 18, 2010 10:01 AM EDT reply actions  

Whole lotta bull…

Kid likes watching basketball – kid wants to get paid to watch basketball – kid writes papers to justify why he is getting paid to watch basketball
I had a couple buddies in uni who did the same thing with porn and sleeping – they got paid (and credits) to watch porn and sleep and then tell us some random fact that couldn’t be proved but couldn’t be disproved too.

by Rapster on Aug 18, 2010 10:02 AM EDT reply actions  

Just because it doesn’t sound macho, doesn’t mean it doesn’t have an impact.

Why do you think so many NBA players touch hands just before a free throw? They must be doing it for a reason. They probably do it out of habit, but at some point they made the unconscious association between the touches and making the free throw and not touching and missing the free throw.

by siggian on Aug 18, 2010 10:18 AM EDT up reply actions  

Why did Stockton rub his face before shooting a freethrow – because he wants to say hi to his kids . How come no one touches a FT shooter before he takes a Technical – because no one is around. It’s a habbit and sometimes superstition – you cant read too much into this..
It’s a team sport – you got to be ‘touchy’ when playing a team sport. Every team sport from tennis (doubles) to water polo involves some sort of ‘touchiness’ and the more successful you are the more you ass/back slapping you get. You really can’t quantify that and make assumption on a half/season.

by Rapster on Aug 18, 2010 10:43 AM EDT up reply actions  

Also I bet garnett was as touchy when we was in Minny – look what happened there

by Rapster on Aug 18, 2010 10:46 AM EDT up reply actions  

Yes, but the focus should be on Garnett

Garnett was always a great player. His team in Minny was just bad, similar to the raps last year. One player can’t change the whole team, even a leader like Garnett. When you have too many selfish malcontents on a team, it will negate the leadership.

by PNUTZ on Aug 18, 2010 10:50 AM EDT up reply actions  

Stockton didnt rub his face...

it was Jeff Hornacek. The article was talking about touching between team mates not touching your own face.

No one touches a FT shooter during a t-foul freethrow because they’re not allowed to be there. If they were then they would touch. No one was saying touching makes your team better.
As someone already previously mentioned, the theory does not show causality. its not saying “you touch more you win more”. It’s a correlation. Which means in an observed environment, teams are observed to be more successful when there is an abundant behaviour of touching among team mates.

by teedotaj on Aug 18, 2010 12:39 PM EDT up reply actions  

Hornacek and Stockton look the same to me :-)

by Rapster on Aug 18, 2010 3:14 PM EDT up reply actions  

Porn and sleeping? You mean porn and NOT sleeping??

In any event, I’m not sure it’s that cut and dry – and there’s a lot of footage and analysis that went into this and whether you believe in the science behind it or not, it’s a pretty interesting concept…one that hopefully we can look back on next off-season to see how various current Raptors have changed in terms of their level of “touchiness.”

Adam Francis - Publisher - RaptorsHQ.com

by Adam Francis on Aug 20, 2010 10:20 PM EDT up reply actions  

What I'd like to see

Is Bosh’s touchiness stats over the years with the raps. Seems to me, every year he did more touching… I think it’s common sense that it helps and it’s a way players motivate each other. They play for each other.

by axl t on Aug 18, 2010 11:10 AM EDT reply actions  

Love to see that too Axl – I’m hoping that we can touch base with Dr. Kraus each off-season to see how certain Raptors change in this regard.

The guy I’m most interested in from this past season to the upcoming one? Bargnani – who’s often been accused of not being nearly emotional enough…

Adam Francis - Publisher - RaptorsHQ.com

by Adam Francis on Aug 20, 2010 10:17 PM EDT up reply actions  

Bosh in Miami

I think the author of the study is right that Bosh is going to have to be the glue-guy in Miami. For that team to work he is definitely going to have to sacrifice his offense and he is going to have to step up more on D. Wade will be the team leader and LeBron will be the team prima donna, so Bosh is going to have to step up as the team’s “good cop” to keep everything working smoothly. Although, it would be entertaining if he didn’t do that and the whole soap opera imploded.

by DW19 on Aug 18, 2010 12:40 PM EDT reply actions  

Am I the only one

Who thinks that these guys are just going to be awesome and that the only drama will be contrived by the media? These guys have always been pros on the court.

by axl t on Aug 18, 2010 3:07 PM EDT up reply actions  

I’d love to see it implode…but I don’t think Riles will let it happen.

Adam Francis - Publisher - RaptorsHQ.com

by Adam Francis on Aug 20, 2010 10:14 PM EDT up reply actions  

Regarding Young Gunz

I would expect the Young Gunz to be Toronto’s new leaders in the “touchiness” department. The thing that will be interesting to watch is whether they just do it between themselves or if they make an effort to include the rest of their teammates.

Also, we’ll see if Bargnani shows any leadership this year or if he continues to exist more or less in a bubble.

by DW19 on Aug 18, 2010 12:44 PM EDT reply actions  

Think about your workplace. Now think about a situation where one of your co-workers is considered the ‘star’ employee by management yet you find yourself constantly covering his a$$ defensively… err, I meant on work assignments. That’s Bargnani – he’s in a bubble of his (and Colangelo’s) own creation.

by RaptorsHQ - Defensive Stance on Aug 18, 2010 12:56 PM EDT up reply actions  

Well… how exactly are his teammates (especially the wings and point guards) covering his ass defensively? He is a good man-to-man defender and rarely needs help. If anything the complaint is that he isn’t covering THEIR asses enough, when they get beat.

And considering he is one of the only players on the team that will draw double teams and open up room for his teammates for the other half of the game (offense)…

So… in the office, he is always finishing his own work (on both ends) and some of his work makes your work easier, but because he doesn’t help you on your assignments, you resent him for being the star employee?

by dhackett1565 on Aug 18, 2010 1:38 PM EDT up reply actions  

He is a good man-to-man defender and rarely needs help.

Really?

by RaptorsHQ - Defensive Stance on Aug 18, 2010 1:51 PM EDT up reply actions  

Really. A lot of the Raps defensive breakdowns came from sending needless double teams when Bargs and Bosh were holding their own on the post.

by dhackett1565 on Aug 18, 2010 1:59 PM EDT up reply actions  

Really. I don’t know if you’re seriously this sour on Bargnani or you just put stuff up for jokes. Gets kind of tired how you skew EVERYTHING so that you can take a shot at him. What does it add to the conversation?

Happiness is that which gets lost in the details of its pursuit.

by HQ Interloper on Aug 18, 2010 2:22 PM EDT up reply actions  

You don’t actually need to skew anything to criticize Bargnani’s defence.

by RaptorsHQ - Defensive Stance on Aug 18, 2010 2:30 PM EDT up reply actions  

2010 All Non Defensive Team

Link (via TrueHoop)

C Andrea Bargnani

This was a close call between Andrea and Al Jefferson but I think Andrea’s lack of athleticism gives him the slight edge. Andrea’s one year defensive adjusted +/- rating is a staggering -9.13 and although adjusted plus minus rankings should be taken with a rather large grain of salt (especially 1 year ratings) when I substitute Andrea for any other starting center in the league, Toronto’s defensive numbers improve across the board.

by RaptorsHQ - Defensive Stance on Aug 18, 2010 2:45 PM EDT up reply actions  

Add to that...

… the fact that a member of Toronto’s coaching staff was quoted as calling Bargani “clueless” as a help defender. I mean… his own coaching staf!!! Can Bargani provide some resistance in the post, one on one, sure. However, Basketball is a team game, and Bargani is an abhorrent team defender. Maybe the worst at his position in the league.

by MAS11 on Aug 18, 2010 2:54 PM EDT up reply actions  

Yeah, but the whole conversation we’re having here is about his man-to-man defense.

by dhackett1565 on Aug 18, 2010 3:11 PM EDT up reply actions  

I think having an adjusted +/- rating of -9.13 is an indictment of both his help defence AND his one-on-one defence. I think the idea that Bargnani is a good one-on-one defender is rooted in the fact that he does average a blocked shot per game. And therein lies the trouble with using box score stats to make assumptions…

by RaptorsHQ - Defensive Stance on Aug 18, 2010 3:21 PM EDT up reply actions  

How may raps need to touch Bargs to get his defense going?
I for one say this team is better with him on it; we don’t have a choice so let’s stop whining about how bad he is. He didn’t ask colangelo to draft him #1 nor did he demand the 50 Mil – blame BC for over hyping the poor dude.

by Rapster on Aug 18, 2010 3:36 PM EDT up reply actions  

Which brings me back to one of my original points:

That’s Bargnani – he’s in a bubble of his (and Colangelo’s) own creation.

by RaptorsHQ - Defensive Stance on Aug 18, 2010 3:38 PM EDT up reply actions  

According to his agent, he wanted more than 50 million.

by dhackett1565 on Aug 18, 2010 3:39 PM EDT up reply actions  

Or maybe I never look at boxscore stats, and instead have pulled my opinion from watching the games. And have seen that Bargnani truly struggles with rotations (gets caught watching the ball) and help defense, and is actually decent at man-to-man defense, and Triano’s defensive system calling for pretty much constant rotating and help skewed his overall defensive numbers.

He is a brutal team defender, and no one is arguing that. He could improve that, who knows, but he is certainly improving and has improved to an adequate man-to-man defender.

by dhackett1565 on Aug 18, 2010 3:43 PM EDT up reply actions  

Fair enough

But, in today’s NBA, defence is predicated on “Help-Defence”. No one in the NBA stops a player one on one. Players are just too big, too, strong, quick and athletic. Add to that, the new hand-check rules have handicapped the defensive player so Help-D is the only way to defend. I’d also argue that the key defensive position on an NBA team is the Centre position. Therefore, expecting a team to compete when their starting centre is in the words of his own coaching staff, "clueless" and as D-stance has pointed out, maybe the worst statistically rated defensive centre in the league is extremely problematic.

My point has always been that I am skeptical any team, not just the Raptors, but any team would struggle to be a contender with Brgani as their starting centre.

by MAS11 on Aug 18, 2010 3:54 PM EDT up reply actions  

I agree with both sides here. Bargnani is not a terrible man to man defender, but a center’s main goal on defense is to be the anchor. If he isn’t a good help defender, the whole team defense suffers. When guards get beat on the perimeter (which is inevitable) the center and power forward have to be able to rotate to the weak side and pick up the coverage while trying be to big and take away drop off passes. Bargnani is very slow at this, and a good defensive center isn’t.

by PNUTZ on Aug 18, 2010 4:21 PM EDT up reply actions  

are these conversations going to be remembered

the next time Jose gets criticized for being the worst defensive pg/player in the league?

ie. guards get beat…. bigs need to help.

by Not so Friendly Stranger on Aug 18, 2010 9:17 PM EDT up reply actions  

The trouble with tribbles

I am not a Bargnani defender but +/- is difficult to correlate to a players defensive ability one on one. I think the bigger indicator is a straight comparison of opposing centers points per game against the Raptors and against everyone else as a true indicator of his defensive prowess or lack there of. I don’t have the numbers in front of me but they would provide a pretty decent indicator of whether he is actually holding his own or not.

by McGateway on Aug 18, 2010 5:47 PM EDT up reply actions  

Fascinating concept. Loved this article Franchise. Great mid-offseason subject matter to energise the grey matter. Would love to see more articles like this one, where we delve into the either of sports psychology and other theoretical basketball related subject matter. Fantastic!

by MAS11 on Aug 18, 2010 1:28 PM EDT reply actions  

Thanks Mas11 – we’ve got a few more tricks like this up our sleeve to roll out during these lonnnng days of NBA off-season!

Adam Francis - Publisher - RaptorsHQ.com

by Adam Francis on Aug 20, 2010 10:14 PM EDT up reply actions  

Regarding the Young Gunz - take 2

I knew that mentioning Bargnani would totally take away from my main point…

As I mentioned above, I think Weems, Johnson, DeRozan and especially Jack will step up this season in the “touchiness” department for the Raps. I might include Davis, Kleiza and Wright in that group if they mesh well with those other guys. However, I would imagine that this “touchiness” will be more focused on keeping each other’s spirits up as they suffer through a tough season. Also, I’d be worried about whether a bit of a clique develops on the team or if the guys are all get along.

by DW19 on Aug 18, 2010 4:52 PM EDT reply actions  

You committed the cardinal sin of RapsHQ – mentioning Bargs. Ever.

by dhackett1565 on Aug 19, 2010 8:13 AM EDT up reply actions  

The cardinal sin is actually mentioning Bargs in combination with any of the following:

“needs more touches”

“ready to be the number one option on offence”

“good one-on-one defender”

“one of the best players in the 2006 draft”

“future All-Star”

by RaptorsHQ - Defensive Stance on Aug 19, 2010 9:57 AM EDT up reply actions  

NBA Jam

just like to point out that Toronto would have to be the worst team in the game with calderon and bargnani. and the video showed that as in the two clips they got blocked once and an ‘on fire’ dunk thrown down on them. aha

by $Money on Aug 18, 2010 8:14 PM EDT reply actions  

…we MAY have said something similar internally here at the HQ lol…

Adam Francis - Publisher - RaptorsHQ.com

by Adam Francis on Aug 20, 2010 10:12 PM EDT up reply actions  

Comments For This Post Are Closed


User Tools

RaptorsHQ is a growing, interactive community committed to providing the best Raptors and Canadian basketball content on the web.

FanPosts

Community blog posts and discussion.

Recent FanPosts

Small
outside the top 5
Small
Andrea 2.0 Article
Small
"Go Raps Go" - "um, Daddy; what's a Rap?"
Jordan-sky-high---men_s-eastbay-wp-1152x864_small
Bryan Colangelo: Pay Attention. Here We Go!
Small
Jonas Talks About How His Coach Emphasizes Defense
Small
TORONTO and NEW YORK as trading partners.
Small
Loss of Andrea Bargnani a big blow for Raptors
Jumpman_logo_small
My Raptors Rebuild
Small
lost against Blazers
Small
Time for a facelift?

+ New FanPost All FanPosts >


Managers

2009_0503draft09-20006_-_williams_solo_small Adam Francis

Basketball_20gym_20in_20sun2009-01-27-1233091216_small RaptorsHQ - Howland

Editors

Viciousd_2005-01-20_small Raptors HQ - Vicious D

Authors

Burgundy_small RaptorsHQ - Defensive Stance

Img_0813_small rbala