<p>A literature review was conducted <a href="https://www.researchgate.net/profile/Meyran_Boniel-Nissim/publication/237739176_A_Comprehensive_Review_and_a_Meta-Analysis_of_the_Effectiveness_of_Internet-Based_Psychotherapeutic_Interventions/links/54ae40c10cf2828b29fcc7a1.pdf" rel="nofollow noreferrer">Barak et al. (2008)</a> that compared the effectiveness of internet-based psychotherapy in general (not specifically hypnosis). From their abstract, the results indicate that:</p>

<blockquote>
  <p>The overall mean weighted <strong>effect size</strong> was found to be 0.53 (medium effect),
  which <strong>is quite similar to the average effect size of traditional, face-to-face
  therapy</strong>.</p>
</blockquote>

<p>Following, they</p>

<blockquote>
  <p>[...] examined interacting effects of various possible relevant moderators of the effects of online therapy, including type of therapy [...], type of outcome measure, time of measurement of outcome (post-therapy or follow-up), type of problem treated, therapeutic approach, and communication modality,
  among others. <strong>A comparison between face-to-face and Internet intervention
  as reported on in 14 of the studies revealed no differences in
  effectiveness</strong>.</p>
</blockquote>

<p>In short, the studies reviewed,</p>

<blockquote>
  <p>provide <strong>strong support for the adoption of online psychological
  interventions as a legitimate therapeutic activity</strong> [...].</p>
</blockquote>

CC BY-SA 3.0
2017-05-11T06:48:22.040Z
Does the review deal with hypnosis? I skimmed through it but did not find a mention of it
lucianopaz
CC BY-SA 3.0
2017-05-12T13:56:58.243Z
@lucianopaz I am not sure it does specifically. I believe the results may be generalizable given that they found no differences even when correcting for type of therapy
Robin Kramer-ten Have
CC BY-SA 3.0
2017-05-09T10:21:06.990Z
2017-06-27T16:29:00.170Z
2017-06-27T16:29:00.170Z
Robin Kramer-ten Have
<p>Some hypnotherapists offer healings over the internet, whereas some other don't. I'd like to know how successful is hypnosis or hypnotherapy over a distance, for example, over Skype?</p>

<cognitive-psychology><hypnosis>
How successful is hypnosis or hypnotherapy over a distance, for example, over Skype?
Mathmath
# How successful is hypnosis or hypnotherapy over a distance, for example, over Skype?

(Asked by: username_0 on 2017-05-06)

Some hypnotherapists offer healings over the internet, whereas some other don't. I'd like to know how successful is hypnosis or hypnotherapy over a distance, for example, over Skype?

**Tags:** cognitive-psychology, hypnosis


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## 1 answers

### Answer by username_1 on 2017-05-09. Score: 4

A literature review was conducted [Barak et al. (2008)](https://www.researchgate.net/profile/Meyran_Boniel-Nissim/publication/237739176_A_Comprehensive_Review_and_a_Meta-Analysis_of_the_Effectiveness_of_Internet-Based_Psychotherapeutic_Interventions/links/54ae40c10cf2828b29fcc7a1.pdf) that compared the effectiveness of internet-based psychotherapy in general (not specifically hypnosis). From their abstract, the results indicate that:

> The overall mean weighted **effect size** was found to be 0.53 (medium effect),
> which **is quite similar to the average effect size of traditional, face-to-face
> therapy**.

Following, they

> [...] examined interacting effects of various possible relevant moderators of the effects of online therapy, including type of therapy [...], type of outcome measure, time of measurement of outcome (post-therapy or follow-up), type of problem treated, therapeutic approach, and communication modality,
> among others. **A comparison between face-to-face and Internet intervention
> as reported on in 14 of the studies revealed no differences in
> effectiveness**.

In short, the studies reviewed,

> provide **strong support for the adoption of online psychological
> interventions as a legitimate therapeutic activity** [...].

> **Comments:**
> **username_2**: Does the review deal with hypnosis? I skimmed through it but did not find a mention of it  
> **username_1**: @username_2 I am not sure it does specifically. I believe the results may be generalizable given that they found no differences even when correcting for type of therapy  

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