Exam 2: B: Reading and Evaluating Scientific Research

A researcher is interested in determining how frequently bullying behaviour occurs in real-life settings.This researcher would best be advised to use the _________________.

The peer review process is designed to

The most important factor to ensure that one's results apply to other people in other settings is to use

Which of the following is the correct description of frequency?

Which of the following is true about studies that potentially increase mortality salience in participants?

Professor Todd decides to test her hypothesis that eating chocolate prior to exams increases students' test scores.She randomly assigns students to two groups at the beginning of the semester.One group receives a bar of chocolate before each test,while the other group receives another type of candy.She compares their scores at the end of the year,and finds that the students who ate the chocolate scored an average of ten points higher on their exams.What is a fair conclusion that can be drawn from this experiment?

The __________ variable is what the experimenter manipulates (or varies).

Professor Golder is studying hyperactivity in preschool-age children.She is concerned that differences in child rearing,diet,and so forth may affect her results.To minimize these potential preexisting variables,she should be sure to do which of the following?

When assessing patients' personalities using an "ink blot" test that she created,Dr.Hardcastle is gaining confidence in the test's reliability.Which of the following is likely to be happening?

An administrator believes that the placement of motivational posters on the walls in classrooms of academic buildings will lead to increased GPAs (grade point averages)at his school.To test his theory,he randomly assigns certain classrooms within the university's Faculty of Science to have the posters while others do not.None of the remaining four faculties will have any posters placed in their classrooms.What is the independent variable in this study?

What does the height of the bars on a histogram indicate?

Which of the following is subjective?

In an experiment,a researcher wants to avoid the presence of _______________.

Watching behaviour in real-world settings is known as ___________.

If all of the scores in a distribution are clustered closely together,the distribution has ____________.

Which of the following is a measure of central tendency?

In research,the object,concept,or event being measured is called a ____________.

The scores on most standardized tests have a __________________ distribution.

A researcher uses a blood pressure cuff (technically called a sphygmomanometer)to measure the blood pressure of participants while they are shown sexual,violent,or relaxing videos.The blood pressure measurement in this study is an example of ______________.

Researchers use _________________ to determine whether the difference between groups is statistically significant.