SSIC Military Personnel // Deleted. PERFORMANCE EVALUATION SYSTEM (SHORT TITLE: PES). mco · PERFORMANCE EVALUATION SYSTEM · PES. This Order revises the policies, procedures, and standards for the operation and maintenance of the Marine Corps Performance Evaluation System (PES). 8 May R Z MAY 18MARADMIN /18MSGID/GENADMIN/CMC WASHINGTON DC MRA MM//SUBJ/REVISION OF MCO

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This distance is then duplicated below usmc pes manual, producing a symmetrical scale from 80 to If an above average report is 90 percent usmc pes manual the distance from the profile average to the highest report average, that report is assigned a relative value of It takes only a slightly larger change in one attribute mark to be the difference between a and an Really Taking Care of Our Marines.

Put simply, Marines intuitively understand the RS profile and ranking in a way they do not understand relative values, which increases the odds that fitness reports will be interpreted with due skepticism by selection boards.

For pee Marine ranked sixth of six in Figure 2, it is certainly a blessing, since selection boards will not know that the RS actually ranked them in the bottom third of the Marines they observed by quantile. Symmetry is required because the relative value is derived from the mean average, which is informative when summarizing symmetrical distributions but often misleading when distributions are skewed.

The only exception is when all the reports in a profile have the same average, in which case all are assigned a value of For the relative value to be a reliable summary of relative performance, RSs must have observed a mix of strong and weak performers, and those Usmc pes manual must be split symmetrically on either side of the profile average. This website is not an official U.

Parametric statistics make distributional assumptions that must hold true for the statistic to be reliable. Following some concluding remarks, we include a short appendix that presents the manyal usmc pes manual for relative value and provides a detailed explanation of how the number is calculated. Reports with a relative value between Until the Marine Corps comes around to this view, we strongly recommend RSs track usmc pes manual profile carefully and write reports to achieve a specific relative value, since it is the only way for an RS to ensure that a selection board will accurately interpret their evaluation.

We requested data from Records and Performance Branch MMRP manusl do our own analysis, but they did not have the resources to support our request. Usmc pes manual, we caution the reader that none of these studies is free of errors. But the usmc pes manual can also work in reverse: Msnual a below average report is 40 percent of the distance from the profile average to the value of 80, that report is assigned a relative value of In such cases, the accuracy of the relative value will be degraded.


This happens when changing a single mark can produce a tie with either of the other two usmc pes manual in the RS profile—a situation not unlikely when an RS has written multiple reports on the usmc pes manual Marine or has multiple Marines with similar performance.

We encourage RSs to either use this or some similar tool while they are writing their fitness reports.

Exactly how much influence relative values have varies from board to board they appear to have been less influential on the staff sergeant board discussed usmc pes manual, for usmc pes manualbut they are important more often than not.

The highest report average or averages, if there is a tie is always assigned a relative value of usmc pes manual When this happens, the system automatically changes the relative value to 80 this means several reports toward the bottom of the profile may be assigned a relative value of 80 even if they are not the lowest-ranked report in the profile. Past board members we talked to have seen Marines with very high relative values get passed over and Marines with comparatively low relative values selected with enthusiasm.

To reach the official USMC website, please go to www. The numbers on the far left are fitness report averages; those on the far right are relative values.

Notice that the rank of the usmc pes manual report is different in each profile. Center for Usmc pes manual Analyses, Volume 99, Issue Prior Research Arlington, VA: How relative values work, and why the Marine Corps should stop using them.

To convert report averages into relative values takes several steps, and it will probably help to review Figure 1 as we walk through them.

The mathematical equation for relative value. Then we show both why relative values cannot be properly interpreted with the tools selection boards currently use and how to correct the problem. Figure 2 shows just how poorly relative values usmc pes manual capture relative performance.

We only have space to review a few of the problems with relative values here. They do not count toward the total of three observed reports or receive relative values see PES Manual, When a RS has written only three reports, it is possible for the smallest change in one attribute mark to be the only difference between a report with a relative value of and one with an 85 top third versus bottom third.

Portions of the equation for relative value can be found in Adam Clemens et al. The size of the effect appears to vary usmc pes manual with rank.


These reports suggest very different relative performance, but since these two profiles have exactly the same summary statistics, they are indistinguishable on a master brief sheet. In every usmc pes manual case, reports with manuall usmc pes manual the profile average will receive relative values above 90, and reports with report averages below the profile average will manula values below Note that even though each highlighted report in Figure 2 falls in usmc pes manual different place in each RS profile, they will all be in the middle third from the point of view of a selection board.

This give the Marine Corps several options: For example, an RS may have had one usmc pes manual Marine and several average Marines, or one bad Marine and several excellent ones, or several very similar Marines, usmc pes manual four very good ones and two very bad ones, or some similar combination.

As it stands, few Marines understand how to properly interpret relative values even among those that are trained to know.

After-action surveys from the Fiscal Usmc pes manual Sergeant Major Through Master Sergeant Selection Board and the Fiscal Year Staff Sergeant Selection Board reveal that a large majority of usmc pes manual members thought relative values were of equal or greater importance than the narrative ysmc in a fitness report in part because most narrative comments have to be neutral or positive or the report will be rendered adverse. The Importance of Relative Values Consistently high relative values do not guarantee a Marine will be retained or promoted, nor do consistently low relative values guarantee a short career.

Miscalculating Performance | Marine Corps Association

Note the absence of a bell curve, the fact that a relative value of 80 does not mean the report is the lowest in the profile, and that no Marines fall in the middle third we discuss thirds in more detail later. All these statements are either wrong or highly misleading. Next, the report average usmc pes manual the highest report the one with a value of is subtracted from the average of the report averages the number that represents a value of In this article, we first review the importance of relative values in the selection board process.

This figure shows how relative value is calculated using a hypothetical RS profile with six reports. Also note that because the relative value is based on the average usmc pes manual the highest report, it usmc pes manual possible for the lowest report in the profile to have a value significantly higher than