Depending on conditions, you may have a good or bad chance of finding the desired result. To increase power you can:

1. Try to increase the effect size or the strength of the relationship.
   
   
2. Decrease experimental error.
   
   
3. Use a higher alpha level (say .05 as compared to .01). Note this increases power but also Type I error.
   
   
4. Increase sample size.
   
   
5. Use matched samples or covariance techniques.