Exam 2: B: Reading and Evaluating Scientific Research

Lisa,a university student,had a great time at the party last night.She danced,sang karaoke,and even played the "Rock Band" video game-all behaviours that she had never exhibited in public before.She had been drinking the "punch" all night long,which she was told contained high levels of alcohol.Lisa was quite surprised to find out the next morning that the punch did NOT contain any alcohol.What concept may explain Lisa's behaviour?

Conceptually,the standard deviation for a distribution can be thought of as

How does conducting a double-blind study attempt to remedy the effect of bias?

Confidentiality requires researchers to do which of the following?

Ecological validity refers to

The main purpose of replicating studies is to

Alex,a university student,wants to know how many of her dorm mates have tried marijuana,so she decides to survey everyone on her floor.Despite rumours to the contrary,the results suggest that fewer than ten percent of her classmates have tried the drug.What is the most likely explanation for her findings?

The perception of a statistical association between two variables where none exists is known as ______________.

Quasi-experimental designs are similar to true experimental designs,except for what difference?

_____________ research does not attempt to explain how or why something happened,but instead it is an opportunity to present observations about the characteristics of the subject.

Although not ideal,researchers often use _______________ samples,which are samples of individuals that are the most readily available.

What is the purpose of a research ethics board?

Dr.Schott's scatterplot reveals no real patterns or clusters.In fact,the data seems to fall randomly on the graph.This pattern of results is most likely from which type of correlation?

Which correlation coefficient is most likely to describe the relationship between brushing one's teeth and the number of cavities one gets?

_______________assumes that there are facts about the world that can be observed and tested independently from the individual who describes them.

A teacher is disappointed to find that most of her students' test scores are clustered together at the low end of the grading scale,with only a few students having high grades.If she were to graph the distribution,what shape would it have?

If a set of data has a skewed distribution,which measure of central tendency should be used?

Dr.Potter,an English professor,is curious about his students' attitudes toward one of his favourite books.What research method is he most likely to use to gather this information?

Appeals to authority are generally considered a(n)____________ kind of evidence because _______________________.

Ursula works in an office.One day,her boss tells her that researchers will be in the office to observe productivity.Because she knows she is being observed,Ursula finds that she is working harder than she normally does.What is this an example of?