It states so in my textbook. But since s orbital is non directional, shouldn't sp hybridized orbital be less directional in character than p orbital?
Ignore everything else in image , this image is just for shape comparison.
As you can see in image that so orbital is a lobe with unsymmetrical shape this leads to its more directionality.
P orbital possess equal Electron Density on both sides of the orbital , but in case of sp orbital electron density isn't equal and that's the reason why sp is more directional than p .
That's also the reason for their different Electronegativity.