Hoping this would calm the nerves of some people, me included. 
I made an extensive analysis of the actual final MCAT scores. I work as an accountant and I need to see numbers.
The link to the spreadsheet that I got the information from can be found here as well as the form to add more data. Thanks mcatjelly.
http://forums.studentdoctor.net/threads/spreadsheet-for-mcat-2015-scores-now-has-form.1158041/
I used the information posted to that spreadsheet, and added 42 more people and deleted duplicates, and irrelevant post from people that only posted one score. The actual sample for this was 288 people. For making the following analysis I used only relevant data.
Analysis 1 Shows how many people scored above their practice test scores.
Company/- Sample #/ Scored above / Scored = / Scored under
AAMC fl--/-271 ----- / 95.20% --------- / 0.0%-- - / 4.8%
Kaplan----/141 ----- /100.0% ------- - /0.0% -- - / 0.0%
TPR ------/132----- /97.7% --------- / 0.0% -- - / 2.3%
EK --------/83 ----- /98.8% --------- / 0.0% --- / 1.2%
NS -------- /38 ----- /100.0% --------- / 0.0% -- - / 0.0%
The average difference for each company test to actual test were
AAMC was 6.03 points
Kaplan was 14.06 ------------ *note this has data from before and after the changes to kaplan score tables.
TPR was 11.70
EK was 8.86
Next Step was 8.51
"*note you can add this amount to your score in the following area, but I recommend using the last table is more precise I believe. "
The minimum and maximum differences in practice test from the actual test were
"AAMC 14 max(over), -8 min (under)"
"Kaplan 27 max(over), 3 min (over)"
"TPR 22 max(over), -1 min (under)"
"EK 21 max (over), -5 min (under)"
"NS 21 max(over), 1.5 min (over)"
Analysis 2 Compare Actual to Composite Average, (all test taken, includes,AAMC,KAP,TPR,NS,EK)
------------------------ Score range / Sample / Average Diff. / Standard Deviation / avrg score all test taken (composite average)
ACTUAL TEST Score -> 521-528 / 51 -----/ 12.98 -------- / +-1.04---- --------/ 509.44 <- average score
ACTUAL TEST Score -> 513-520 / 166 ----/ 9.49 --------- / +- 0.97 -------------- / 506.05
ACTUAL TEST Score -> 505-512 / 65---- / 5.72 --------- / +- 0.8 -------------- / 503.07
ACTUAL TEST Score -> 495-504 / 6 ----- / 0.80-------- / +- 1.61------ -------- / 496.91
Analysis 3 Compare AAMC FL 1 score range to actual amount FINAL MCAT (use formula this y= 0.7133x+451.051 to convert AAMC Fl from percentage of Correct to percentile)
------------------------ Score range / Sample / Average amount over in actual test
AAMC FL Scores --- -> 520-511 -- /102 ------- / 6.22
AAMC FL Scores---- -> 507-510 -- / 104 ------ / 5.76
AAMC FL Scores------> 502-506-- / 51 ------- / 6.44
"Conclusion if you take more than 5 practice test, an calculate your composite average score, use one of the following tables and add the amount in the last column. " That will be your approximate MCAT score with a deviation of +-2.5
Analysis 4 PREDICTION
----------------------------------- Score range /Sample / How much you can add as an estimate
Actual overall average all test* --- <<<- 510 / 42 --- / 8.20
Actual overall average all test* --- 509- 505 /124 --- / 10.01
Actual overall average all test* --- 504- 500 /103 --- / 10.55
Actual overall average all test* --- 499-492 / 19 - --- / 11.48
Scoring under don't take the test
NOTE- there was not enough data for averages above 515.
----------For this to be useful you need to take the score you got the first time you took a practice text. Next you need to calculate the average of all your scores (aamc,kap,tpr,ek,ns) added together.
-----------*Actual overall average all test* is the same as composite average explained below.
Analisis 5 People who took at least 5 or more practice tests
Of the 288 sample, 155 took at least 5 practice test or more
A 100% of them scored at least 1 point over their composite average*
92.93% Scored at least 5 points over their composite average
87.1 % scored at least 7 points over their composite average.
65.2 % scored at least 10 points over their composite average.
7.07% scored between 1 and 4 points more than their composite average.
--------------* composite average the sum of all of your scores per test divided by the amounts of test taken.
I just hope this helps predict scores. Remember this is not a definite predictor of your actual score, Statistics are never exact predictors.
--------Made some corrections and actualized some more information. 12/31/2015---------
Use this formulas to convert percentage of correct for AAMC Fl and the EK (substitute the x for the percentage of correct the result should be very close to the percentile average required to make the predictions. )
Formula for AAMC is y= 0.7133x+451.051
For EK use the following formula. y=0.4908x+473.13
-------------------
I made an extensive analysis of the actual final MCAT scores. I work as an accountant and I need to see numbers.The link to the spreadsheet that I got the information from can be found here as well as the form to add more data. Thanks mcatjelly.
http://forums.studentdoctor.net/threads/spreadsheet-for-mcat-2015-scores-now-has-form.1158041/
I used the information posted to that spreadsheet, and added 42 more people and deleted duplicates, and irrelevant post from people that only posted one score. The actual sample for this was 288 people. For making the following analysis I used only relevant data.
Analysis 1 Shows how many people scored above their practice test scores.
Company/- Sample #/ Scored above / Scored = / Scored under
AAMC fl--/-271 ----- / 95.20% --------- / 0.0%-- - / 4.8%
Kaplan----/141 ----- /100.0% ------- - /0.0% -- - / 0.0%
TPR ------/132----- /97.7% --------- / 0.0% -- - / 2.3%
EK --------/83 ----- /98.8% --------- / 0.0% --- / 1.2%
NS -------- /38 ----- /100.0% --------- / 0.0% -- - / 0.0%
The average difference for each company test to actual test were
AAMC was 6.03 points
Kaplan was 14.06 ------------ *note this has data from before and after the changes to kaplan score tables.
TPR was 11.70
EK was 8.86
Next Step was 8.51
"*note you can add this amount to your score in the following area, but I recommend using the last table is more precise I believe. "
The minimum and maximum differences in practice test from the actual test were
"AAMC 14 max(over), -8 min (under)"
"Kaplan 27 max(over), 3 min (over)"
"TPR 22 max(over), -1 min (under)"
"EK 21 max (over), -5 min (under)"
"NS 21 max(over), 1.5 min (over)"
Analysis 2 Compare Actual to Composite Average, (all test taken, includes,AAMC,KAP,TPR,NS,EK)
------------------------ Score range / Sample / Average Diff. / Standard Deviation / avrg score all test taken (composite average)
ACTUAL TEST Score -> 521-528 / 51 -----/ 12.98 -------- / +-1.04---- --------/ 509.44 <- average score
ACTUAL TEST Score -> 513-520 / 166 ----/ 9.49 --------- / +- 0.97 -------------- / 506.05
ACTUAL TEST Score -> 505-512 / 65---- / 5.72 --------- / +- 0.8 -------------- / 503.07
ACTUAL TEST Score -> 495-504 / 6 ----- / 0.80-------- / +- 1.61------ -------- / 496.91
Analysis 3 Compare AAMC FL 1 score range to actual amount FINAL MCAT (use formula this y= 0.7133x+451.051 to convert AAMC Fl from percentage of Correct to percentile)
------------------------ Score range / Sample / Average amount over in actual test
AAMC FL Scores --- -> 520-511 -- /102 ------- / 6.22
AAMC FL Scores---- -> 507-510 -- / 104 ------ / 5.76
AAMC FL Scores------> 502-506-- / 51 ------- / 6.44
"Conclusion if you take more than 5 practice test, an calculate your composite average score, use one of the following tables and add the amount in the last column. " That will be your approximate MCAT score with a deviation of +-2.5
Analysis 4 PREDICTION
----------------------------------- Score range /Sample / How much you can add as an estimate
Actual overall average all test* --- <<<- 510 / 42 --- / 8.20
Actual overall average all test* --- 509- 505 /124 --- / 10.01
Actual overall average all test* --- 504- 500 /103 --- / 10.55
Actual overall average all test* --- 499-492 / 19 - --- / 11.48
Scoring under don't take the test
NOTE- there was not enough data for averages above 515.
----------For this to be useful you need to take the score you got the first time you took a practice text. Next you need to calculate the average of all your scores (aamc,kap,tpr,ek,ns) added together.
-----------*Actual overall average all test* is the same as composite average explained below.
Analisis 5 People who took at least 5 or more practice tests
Of the 288 sample, 155 took at least 5 practice test or more
A 100% of them scored at least 1 point over their composite average*
92.93% Scored at least 5 points over their composite average
87.1 % scored at least 7 points over their composite average.
65.2 % scored at least 10 points over their composite average.
7.07% scored between 1 and 4 points more than their composite average.
--------------* composite average the sum of all of your scores per test divided by the amounts of test taken.
I just hope this helps predict scores. Remember this is not a definite predictor of your actual score, Statistics are never exact predictors.
--------Made some corrections and actualized some more information. 12/31/2015---------
Use this formulas to convert percentage of correct for AAMC Fl and the EK (substitute the x for the percentage of correct the result should be very close to the percentile average required to make the predictions. )
Formula for AAMC is y= 0.7133x+451.051
For EK use the following formula. y=0.4908x+473.13
-------------------
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