Module 5

Which scientist(s) collected data to investigate peptic ulcers?

• Doppler

• Smolyanitsky

• Marshall and Warren

• Pons and Fleischmann

Answer explanation

Marshall and Warren

https://www.youtube.com/watch?v=HP6Zf1ff7Sw&t=17s

Which event is most likely to have improved the public image of science?

• A decrease in biodiversity after the damming of a river

• The reduction in transport times due to the development of flight

• High levels of radiation in the environment due to a nuclear meltdown

• Unexpected negative side effects after administration of a smallpox vaccine

What gas did Priestley collect data on?

• Hydrogen

• Oxygen

• Radon

• Xenon

What was the scientific advancement made possible by the interpretation of the photograph taken by Rosalind Franklin in 1952 using X-ray diffraction?

• Evidence of the structure of the DNA molecule

• Understanding the pathway of X-rays through DNA

• The pattern of radiation given off by a DNA molecule

• Understanding the reflection and refraction of X-rays through DNA

A parent purchases a music book for their child who is learning to play an instrument. They choose a more expensive book that has the picture of a popular recording artist on the cover rather than a similar book with a plain cover. What does the perception behind this purchase illustrate?

• The halo effect

• The Mozart effect

• The butterfly effect

• The accordion effect

Which of the following would be an example of ethical scientific practice?

• Selectively removing outliers from results prior to peer review

• Stopping an expensive medical trial due to negative side effects

• Declaring a conflict of interest between the conclusion of a scientific trial and the publishing of results

• Ensuring consent of participants is obtained between the conclusion of a scientific trial and the publishing of results

The purpose of a placebo in a scientific investigation is to

• act as a control.

• increase the number of participants.

• ensure no bias is demonstrated by researchers.

• compare the effectiveness to previous medication used.