Bj. Cardinal, DEVELOPMENT AND EVALUATION OF STAGE-MATCHED WRITTEN MATERIALS ABOUT LIFE-STYLE AND STRUCTURED PHYSICAL-ACTIVITY, Perceptual and motor skills, 80(2), 1995, pp. 543-546
Two sets of written materials about physical activity were developed,
one promoting lifestyle exercise and the other promoting structured ex
ercise. Both sets integrated the Transtheoretical Model of behavior-ch
ange concepts. Materials were evaluated by 8 women and 6 men (M age =
63.1 yr.) using a stratified (by gender) randomized group design. Part
icipants evaluated the materials on 8 factors of a standardized instru
ment. Cronbach alpha was .97. No significant differences were found be
tween the two sets of materials on the 8 factors evaluated. Effect siz
e differences ranged from .16 to .84 (M = .46).