How did doubling and redoubling change scoring in bridge whist?

In bridge whist, the introduction of doubling and redoubling provided a mechanism to increase the scoring values of the tricks won during a hand.1

When a declaration was made, the opposing side had the option to double the point values assigned to each odd trick (tricks won beyond the first six). If the opponents doubled, the dealer or their partner held the right to redouble, potentially continuing this process indefinitely, though many clubs established specific limits on the number of allowed redoubles.1

These multipliers directly affected the base scoring values for each suit:
* Spades: 2 points1
* Clubs: 4 points1
* Diamonds: 6 points1
* Hearts: 8 points1
* No Trump: 12 points1

By doubling or redoubling, these values were increased accordingly, significantly impacting the speed at which a side could reach the 30 points required to win a game.1