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Current time:0:00Total duration:4:27

Strongly supported inferences | Worked example

Video transcript

beginners typically decide each chess move by considering the consequences expert players in contrast primarily use pattern recognition techniques that is such a player recognizes having been in a similar position before and makes a decision based on information recalled about the consequences of moves chosen on that prior occasion which of the following is most strongly supported by the information above all right now look at these choice a beginning chess players are better at thinking through the consequences of chess moves than experts are well that just seems strange as a statement and if you look at the original information they just say that beginning players typically decide by considering the consequences they're not saying that beginning chess players are better at considering the consequences that would actually be surprised if that's the true so without even looking at these other choices I'm feeling pretty good that a is not going to be it because it's not really supported it's not saying that that beginning chess players are better at thinking through consequences it's just they rely more on that primary then most expert players so let me cross this one out choice B a beginning chess player should use pattern recognition techniques when deciding what move to make that one doesn't feel right either because we remember the pattern recognition techniques that experts do they are relying on information recalled about the consequences of moves chosen on that prior occasion but a beginning chess player isn't going to have all of that experience they're not going to have all of that memory and that information recall so it doesn't make sense or it doesn't it's not supported by the information here for them to primarily use pattern recognition techniques so I'll rule that one out I'll rule that one out as well I'll rule this first one out as well okay so this last toy see ones chess skills will improve only if one learns to use pattern recognition techniques so this one is interesting because what do they think they're saying expert players in contrast primarily use pattern recognition techniques so this one's interesting this one feels closed but let's look at the other choices because this is saying improve only if well we're not even saying whether you want to become an expert we're talking about what do you want to improve and it's not and in general whenever you see a really really strong statement like this I I tend to become a little bit skeptical this is like only if only if one learns to use pattern recognition technique and we're not even saying that you want to become an expert you just need to improve and I would assume that your chess skill chess skills will improve just by playing more by even getting better at kind of these beginner considering the consequences the only way to improve isn't through pattern recognition techniques it's not implied by this information here so talking through it a little bit I feel good about ruling this one out as well in playing chess an expert player relies crucially on his or her memory this is interesting they're telling us expert players primarily use pattern recognition techniques that is such a player recognizes that seems like memory recognizing recognizes having been in a similar position before and makes a decision based on the information recalled about the consequences of the move so if we're going about information recall recognizing things based on previous similar positions information recall this does look like they are relying crucially on their memory so this one's looking good let's look at this last choice any chess player who played other games that require pattern recognition skills would thereby improve his or her chest skills they haven't made that claim in this information above I that doesn't seem supported at all experts do use pattern recognition but says nothing about how well you can port those pattern pattern recognition skills from one game to another so I would rule that one out as well and I would pick choice D