An Experimental Researcher Usually Begins with the Null Hypothesis of No

question 69

Multiple Choice

An experimental researcher usually begins with the null hypothesis of no treatment effect. What does this researcher do when he finds that the probability level is less than the significance level?

• A) The null hypothesis is retained and tested one more time before a determination can be made about the effectiveness of the treatment
• B) The alternative hypothesis (that there is a treatment effect) is said to be true and the null hypothesis is discarded
• C) The null hypothesis is rejected and the alternative hypothesis (that there is a treatment effect) is tentatively accepted
• D) The researcher designs another study to prove the null hypothesis

---

Definitions:

Social Computing

The area of computational systems that enable and support social behavior and interactions among users.

Traditional Focus Groups

A qualitative research method where a small group of people discuss their perceptions, opinions, beliefs, and attitudes towards a product, service, concept, advertisement, idea, or packaging.

Cheaper Results

Obtaining outcomes or final products at a reduced cost, often through efficient processes, negotiation, or alternative solutions.

Blogs

Online journals or informational websites displaying information in reverse chronological order, with the latest posts appearing first.