Exam 2: D: Reading and Evaluating Scientific Research

A psychologist wanted to see if people are more prone to seek the company of others when anxious than when calm.He randomly assigned half of his subjects to an anxiety group and then told them that,as part of the study,they would receive electric shocks.He did not frighten the other group of subjects.Finally,he recorded how many subjects in each group chose to be "tested" in a group setting and how many chose to be "tested" alone.In this study,the group that was NOT frightened would be called the ____________ group.

A scientist,conducting a research study on sleep and learning,questions her own objectivity and decides to let a third person,not associated with conducting the experiment,score the tests.The scientist is probably trying to eliminate __________.

To determine if sugar-rich diets affect hyperactivity in kids,a researcher prepared two daily menus that children would receive for a 30-day period.A high-sugar diet was given to the boys,while the girls had a menu that seemed identical but was not a high-sugar diet.At the end of 30 days,the boys and girls were evaluated to determine their levels of hyperactivity.In the study,the high-sugar diet is the _______.

Using both independent and dependent variables is associated with which of the following types of research used in psychology?

In an experiment,a researcher manipulates one variable to see how it affects a second variable.The second variable,which is observed for any possible effects,is called the __________.

A correlation tells us

When plotting data,Dr.Ryeburn notes that the distribution has an elongated tail to the right.Which descriptive statistic would offer the best measure of central tendency in this case?

Dr.Welsh is doing experiments using drugs.He is concerned that his subjects will respond to demand characteristics.He may want to control for this by using which of the following?

Why is it essential that the experimental and control groups be treated identically in every respect but one?

Observing behaviour as it happens in real-life natural settings without imposing laboratory controls is known as the __________.

The method of psychological research that utilizes a control group,a dependent variable,and an independent variable is

A sample that does not truly represent the population in question is known as a _____________ sample.

Which term best describes the correlation between the full moon and violent crime?

In a controlled experiment,the group subjected to a change in the independent variable is called the __________ group.

Mario is researching the topic of obsessive-compulsive disorder as part of a course requirement.Which source of online information would most likely be peer reviewed?

The purpose of a control group in an experiment is to

A psychologist uses the correlational method to _________.

Sasha read about a study in the newspaper that reported a relationship between schizophrenia and crime.What type of research design was most likely used in this study?

A researcher,based on her review of relevant scientific studies,believes that there is a relationship between the frequency of a baby's crying and whether it was nursed at set intervals or on a demand schedule.If this belief were tested by experimentally manipulating feeding schedules,the feeding schedule would be called the

A psychologist,studying pilot trainees,picks a select group of trainees who she hopes representative of all other trainees.The group of trainees being studied by this psychologist is collectively known to researchers as a __________.