To an extent. As a ghost type, it gets STAB for ghost type moves which are super effective against psychic types. However, as a poison type it is weak to psychic type moves. If you can hit the opponent's Pokemon before it hits you, you are safe.
Fighting and Poison.-
i think it's the psyduck
Psychic is strong against Poison and Fighting, weak against Psychic and Steel, and has no effect on Dark. Bug, Dark, and Ghost are strong against Psychic. Psychic and Fighting are weak against it. There are no types that have zero effect on it.
Fighting type pokemon are weak against psychic attacks
yes
i do not know what "string" against,but i think you mean strong against. haunter is a ghost and poison,so its strong against grass,ghost,and psychic pokemon.thats the ghost & poison good-against.haunter can learn a lot of moves,so learn your ypes chart! by:poke-expert rookie pearl
Psychic and Ground
Fighting and Poison.-
Yes, Haunter is a very good Pokemon
i think it's the psyduck
flying & psychic does 2x damage
The Episodes; Abra and the Psychic Pokemon and Haunter vs. Kadabra
You can beat it easily with Dark, Bug, and Ghost type Pokemon. It is least effective by Psychic, and Fighting.
Fighting moves are weak against Flying type Pokémom, and Psychic moves are good against Fighting type Pokémom.
psychic type pokemon are weak against psychic steel and dark
Psychic is strong against Poison and Fighting, weak against Psychic and Steel, and has no effect on Dark. Bug, Dark, and Ghost are strong against Psychic. Psychic and Fighting are weak against it. There are no types that have zero effect on it.
Bug, Ghost, and Dark type moves are all super effective against Psychic-type Pokemon. As these are considered basic fears of the mind and would be the weakness of a Psychic which fights using its mind.