Exam 2: Methods in Psychology-Part D

A boxer suddenly begins experiencing severe mood swings and exhibiting bizarre behavior.A neuropsychologist determines that the boxer has suffered traumatic brain injury,which has probably been caused by numerous concussions.The neuropsychologist then studies the functioning of the boxer's brain in detail using fMRI brain imaging techniques to learn more about his concussions.This represents a(n):

The more time children spend playing video games at home,the lower their grades are at school.This represents a:

When are two variables said to covary?

Which factor is an important characteristic of a good operational definition?

In order to conduct a valid experiment,you must first manipulate a(n)_____ variable and then measure _____ variable.

_____ is defined as an instrument's ability to detect small magnitudes of the property.

Terrence is studying how music affects attitudes.On a hot June day,he exposes one group of college students to classical music and another group to jazz,while he measures their attitudes toward war.In this scenario,the dependent variable is the:

A college recently banned the use of plastic water bottles on campus in an effort to be ecofriendly.A psychologist at the college is interested in the attitudes of the students toward this ban.She obtains a list of all the students enrolled in the college and arbitrarily selects 100 students for a survey designed to assess their opinions on the ban.In this study,which method has the psychologist used to select students for the survey?

Katrina is interested in studying the relationship between attention deficit disorder and behavioral problems in school children,but she believes that the students' socioeconomic statuses may affect her results.She studies two groups of children through an intervention treatment and makes sure that all children in both groups are from homes with the same level of income.What technique does Katrina use in this study?

When naturalistic observation is not possible,which step can psychologists take to avoid demand characteristics?

If an experiment has a high degree of _____,a causal relationship can be demonstrated between all or certain variables in the experiment.

Which statement describes a difference between a hypothesis and a theory?

James,a psychologist,observes that some people who are exposed to a traumatic childhood experience anxiety disorders later in their lives,whereas some people do not.Which quality of humans,illustrated in this scenario,makes them difficult to study?

_____ use specific rules and techniques to observe and understand natural phenomena.

According to the American Psychological Association,which statement about the use of coercion in psychological research is TRUE?