Step-by-step explanation:
The ideal mechanical advantage of a lever is defined as the ratio of applied resistance force to the applied effort force. It can be also defined as the ratio of effort arm to the load arm. It is given by :

= effort arm
= load arm
If the length between the applied effort and the pivot is decreased, the IMA of a lever will decreased. This is due to the direct relation between IMA and effort arm. So, the given statement is false.