Hi, I have done some research today. And 7 years after Amy cuddy's research and her results are still not reproduced. So i think it is safe to say that power posing and the coinciding effects are due to the Pygmalion effect, selffullfiling prophecy and the placebo effect. Also many of the studies also report no significant effect on other people and internal processes [ Klaschinski and Schnabel et al (2017), Bennett and Oller et al (2017), Keller and Johnson et al (2017)].
So if you believe it is true like TheScottishChick probable did (i am doing an educated guess) this could have effect on your overall confidence. Also i think the effects per gender could differ. Men tend to be more confident due to testosterone and seem to be more sensitive to power associated behavior [Bombari and Schmid Mast et al (2017)]. Another article suggests that the time people adopt the power pose in these experiment settings is to short (<2 minutes) to exhibit noticeable changes, this could also be the reason why further research does not reproduce A. Cuddy's research [Jackson and Nault et al (2017)]. Also in another review they looked at the statistics of Cuddy's interpretation and they found some inconsistencies which could indicate mistakes from Cuddy's team [Credé and Phillips et al (2017)].
- Klaschinski, L., Schnabel, K., & Schröder-Abé, M. (2017). Benefits of power posing: effects on dominance and social sensitivity. Comprehensive Results in Social Psychology, 2(1), 55-67. doi:10.1080/23743603.2016.1248080
- Ge, W., Bennett, T. K., & Oller, J. C. (2017). Should high-power posing be integrated in physical therapy? Journal of Physical Therapy Science, 29(4), 697-701. doi:10.1589/jpts.29.697
- Keller, V. N., Johnson, D. J., & Harder, J. A. (2017). Meeting your inner super(wo)man: are power poses effective when taught? Comprehensive Results in Social Psychology, 2(1), 106-122. doi:10.1080/23743603.2017.1341186
- Bombari, D., Schmid Mast, M., & Pulfrey, C. (2017). Real and imagined power poses: is the physical experience necessary after all? Comprehensive Results in Social Psychology, 2(1), 44-54. doi:10.1080/23743603.2017.1341183
- Jackson, B., Nault, K., Smart Richman, L., LaBelle, O., & Rohleder, N. (2017). Does that pose become you? Testing the effect of body postures on self-concept. Comprehensive Results in Social Psychology, 2(1), 81-105. doi:10.1080/23743603.2017.1341178
- Credé, M., & Phillips, L. A. (2017). Revisiting the Power Pose Effect. Social Psychological and Personality Science, 194855061771458. doi:10.1177/1948550617714584