Pragmatic trials: how to adjust for the ‘Hawthorne effect’?

Pragmatic trials: how to adjust for the 'Hawthorne effect'?

Pragmatic trials: how to adjust for the ‘Hawthorne effect’? Hashimoto et al have conducted an interesting study to offer a practical and pragmatic insight into steroid-dependent asthma therapeutics in real-world practice. They proposed a strategy based on internet monitoring of objective (spirometry and fraction of exhaled nitric oxide) and subjective (asthma control and asthma-related quality ...

The Hawthorne Effect in community trials in developing countries

Understanding the Hawthorne effect.

Researchers investigated the effectiveness of patient controlled analgesia for patients presenting to emergency departments with pain from traumatic injuries. A randomised controlled trial with a parallel groups study design was used. The control treatment was usual care, with analgesia titrated by nurses according to hospital guidelines. The participants were patients aged 18-75 years presenti...

Hawthorne Effect

How Listeners Adjust to Speaker Variability

Perceptual theories must explain how perceivers extract meaningful information from a continuously variable physical signal. In the case of speech, the puzzle is that little reliable acoustic invariance seems to exist. We tested the hypothesis that speech-perception processes recover invariants not about the signal, but rather about the source that produced the signal. Findings from two manipul...