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          a negative effect on skill transfer. 55,68,69  The extraneous load   et al.  Deliberate practice is a very specific, effortful type of
          is determined by how the information is explained or deliv­  practice defined by several practices (Table 1). 98
          ered. For example, if a concept is explained using confusing
          diagrams and with unnecessary information, the extraneous   TABLE 1  Deliberate Practice Concepts
          load increases. If the material is presented clearly, with little   Develops skills that other people have already figured out how
          distracting information and in an easily understood manner,   to do and for which effective training techniques have been
          the extraneous load on a learner’s cognitive capacity is min­  established
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          imized.  This adds to the argument of why adding stressors   Involves well­defined, specific goals and often involves improving
          for novices is likely unhelpful. Gunfire, noise­flash, distrac­  some aspect of the target performance
          tion devices, and screaming all probably add to the extraneous   Takes place outside one’s comfort zone and requires a student to
          load for novices. Even seemingly innocuous distractions, such   constantly try things that are just beyond his or her current abilities
          as interesting but only tangentially related anecdotes (e.g., war   Occurs regularly and extends longitudinally
          stories), might add to the extraneous load. 68,69,71  Involves building or modifying previously acquired skills by
                                                              focusing on particular aspects of those skills and working to
          Some educational strategies seem to benefit virtually all groups,   improve
          from novices to experts. First, activities that force learners to   Involves quantitative and qualitative feedback and modification of
          recall and apply information, such as practice tests, 72­76  answer­  efforts in response to that feedback
          ing questions about material just learned, 77,78  or even reciting   Produces and depends on comprehensive mental representations of
                                                              the target task
                 79
          material,  have demonstrated effectiveness. It also may be ben­
          eficial for instructors to carefully customize training based on   Is deliberate, which is to say that it requires one’s full attention and
                                                              conscious effort
          novices’ needs; if they are struggling, additional guidance and
          structure can be provided. If a learner breezes through the ba­  Adapted from Ericsson KA, Pool R. Peak: Secrets from the New Sci-
                                                             ence of Expertise. New York, NY: Houghton Mifflin Harcourt; 2016.
                                         80
          sics, further challenges may be provided.  This adaptive tech­
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          nique may facilitate positive near and far transfer.  Partial task   This deep, intense, and deliberate practice can be enjoyable and
          training is a technique whereby a multi­step, often complex or   even personally all­consuming, 99,100  but it can also be challeng­
          high­risk technical skill (e.g., cricothyrotomy) is broken down   ing and frustrating. A trainee who completes a scenario and
          into its individual competent steps for separate training and   states, “That was awesome!” or “That was a crazy scenario!”
          then combined so that the entire procedure can be performed.   has not necessarily walked away with skills or knowledge. This
          This technique may also reduce the intrinsic load of more   is not to say that training shouldn’t be engaging, but rather
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          complex skills.  When a skill is broken down and practiced   that attention should be paid to ensure it includes fundamen­
          with variable emphasis or focus as part of a comprehensive se­  tal evidence­based  teaching techniques  and also is entertain­
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          quence, a positive effect on transfer occurs.  Also, the tempo­  ing. Training that is fun or easy does not necessarily equate to
          rality of training is important. Spaced repetition over multiple   effective training. This concept is known as training­transfer
          sessions 84­87  and increasing intervals between practice  demon­  dissociation.  Several variables in training that make it easier
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          strate better skills acquisition and retention.    or more entertaining don’t necessarily facilitate transfer of skill
                                                             and information.  Many learners often make this assumption
                                                                          96
          An adage in the Special Operations community is, “Don’t train   and conflate ease and enjoyment with quality and effective­
                                                                 101
          until you get it right. Train until you can’t get it wrong.” This   ness.  The instructor should be aware of how students may
          statement has some truth to it. Initially, when learning a new   interpret scenarios in regard to efficacy and learning.
          skill, novices are simply trying to understand the task. Their
          experience revolves primarily around doing a task “correctly”   The Role of the Prehospital Medical Instructor
          and avoiding mistakes. Before long, mistakes become increas­  The instruction, guidance, coaching, and feedback provided
          ingly less common, task completion becomes smoother, and   by seasoned, experienced instructors and teachers are para­
          learners no longer need to expend significant mental resources   mount to successful learning. Such instruction begins with
          focusing on the task. 88,89  In fact, often fewer than 50 hours of   understanding students’ capabilities and limitations. Evidence
          practice are required for a number of simple motor skills and   suggests that there is a direct impact on education when in­
          recreational activities before an “acceptable standard” of per­  structors understand the knowledge and beliefs that learners
                           90
          formance is achieved.  However, the point at which learners   bring to the encounter. 102–104  Instructors should understand the
          feel things start to get easy and gross errors become rare is   level of experience of trainees, their individual frames of refer­
          far from mastery. Although rates in error commission don’t   ence when it comes to key concepts and skills regarding tacti­
          noticeably change, task performance continues to improve   cal medicine, and how these frames of reference have come to
          over weeks, months, and years. 90,91  In particular, there are two   be. 105,106  Do the students have a significant amount of medical
          primary measurable changes as practice continues: the speed   experience treating patients in the prehospital trauma setting?
                                   92
          of task performance increases,  and the attentional cogni­  Have they learned habits from previous courses or their own
          tive resources required to perform decrease. 93,94  Some authors   experiences that may not be in accordance with best practice
          have referred to this as “overlearning.” 19,95  The temptation is   for the course? Such awareness can drive effective, adaptive,
          to stop when competence is achieved or even when an indi­  and timely training that best meets the needs of the students.
          vidual can complete error­free task performance. Incremental
          improvements persist beyond this point, and the salient “I feel   Aside from developing curricula and using evidence­based
          like I got this . . .” is not a good marker to terminate learning,    techniques, perhaps the most important role of an instructor
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          especially when it comes to high­risk emergency procedures. 97  is to provide feedback. Feedback has been well studied 107–109
                                                             and is integral to both deliberate practice  and learning across
                                                                                             98
                                                                      110
          A concept that encapsulates these various aspects of effective   disciplines.  The timing of feedback and direction is vital.
          training is that of deliberate practice, proposed by Ericsson   Authors have examined feedback during task execution (i.e.,

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