शैक्षिक मनोविज्ञान के संदर्भ में, अधिगम (सीखना) को मुख्य रूप से किस रूप में वर्गीकृत किया गया है?

What is considered the most appropriate and widely accepted meaning of learning in psychology?

In psychology, learning is defined as a:

The most appropriate meaning and definition of learning is: