pls why error in backtesting

 

i discovered that after programming a scalper EA in mt4,it does wonderful in back test but on forward test it doesn't work well

pls can someone suggest what i can do,thanks

 
You should test it with real ticks. MT4's Every Tick test mode is not sufficient and may produce too good results. Either use a tick test tool for MT4 or convert your EA to MQL5 because under MT5 you have real ticks in tester.
 
Chukwudi Joshua Obiekwe:

i discovered that after programming a scalper EA in mt4,it does wonderful in back test but on forward test it doesn't work well

pls can someone suggest what i can do,thanks

Hi, scalper EA needs very high precision data and it is hard to backtest also this kind EA is very sensitive to market changes. Regards Greg

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