Randomised controlled trials

This video explores the basic design of randomised controlled trial studies, how and when to use these study design, and their strengths and limitations. Randomised controlled trials are also called experimental studies, clinical trials or field trials.

[@waridad]

This was the best thing for my PHD thesis, am using RCT approach to asses the effectiveness of targeted education sessions on increasing cervical cancer screening among female university students. The step by step approach worked magical. Thank you!

[@domingo2386]

Thank you for the excellent presentation!

[@sharonatim383]

Oh my God, your presentations are soooo helpful for me. Thanks so so much 👏👏👏👏

[@delfeno3694]

I'd like to join the various expressions of gratitude. You boosted my confidence and progress in setting up my 'hypothetical study' in my 'merely undergraduate' thesis. Restoring thus my enthusiasm for carrying on with my slightly oversized theme 'Effect of singing interventions and creative bibliotherapy on symptoms of postnatal depression: a three-arm randomised controlled trial', rather than going back to some simpler topic.

[@ScienceandArtofPublicHealth]

I'm glad, its an excellent topic to develop a hypothetical proposal for. Well Done!

[@HeyYall398]

Enjoying this so much. Thank you.

[@zolayang7306]

Very good introduction!!! very useful!!

[@user-es5dp9oz7t]

What about sample size calculations without any similar previous studies to compute ICC, and MDE? Is there a video about sampling.?

[@ScienceandArtofPublicHealth]

Hi, sorry no video yet on sample size calculations and power. It’s a complex topic and depends on type of study and what other information there is about the population.

[@ScienceandArtofPublicHealth]

See ruclips.net/video/-pwQJYjWWMc/видео.htmlsi=i_mqCIuzuJZQ_K5O, you can use Cochran’s formula with variability of factor of interest in population being 50%, the largest variability, with 95% confidence interval (z= 1.96) with precision (p value) of 0.05, worth watching all of it but this discussion is at 07:23 onwards. PS: likely size of your population is important what’s the total pool of people from which sample is taken. Where population isn’t the large i.e. the whole population e.g. population with some kind of chronic health problem which may be small. In this case see the other formulas in this video.

[@chetnarawat104]

plz make video on methods of RCT studies

[@ScienceandArtofPublicHealth]

Not sure what you mean by methods of RCTs, what specific methods were you thinking of.

[@HeyYall398]

@@ScienceandArtofPublicHealthHe is probably referring to parallel, crossover, and factorial RCT designs.

[@ScienceandArtofPublicHealth]

Thanks yes your hunch makes sense.