Chicken Waldorf Salad

1-1/2 C cooked chicken breast, diced
2 large Red Delicious apples, cored and diced
1 C diced celery with leaves
2 T chopped pecans
1/2 C raisins
2 T reduced-fat mayonnaise
2 T plain nonfat yogurt

Toss chicken, apples, celery, pecans, and raisins. Mix mayonnaise with yogurt and pour over salad; lightly toss until all ingredients are evenly coated.