Exam 2: Methods in Psychology

In a classic experiment,psychology students were assigned to work either with "bright" rats or with "dull" rats,described as such by the experimenter.In a task involving learning a maze,rats arbitrarily labelled as "bright" learned the maze faster than did rats arbitrarily labelled as "dull." The experimenter suspected that the psychology students with "bright" rats took the learning task more seriously,and this was reflected in their rats' performance.This finding illustrates how:

In an experiment,researchers exposed half of the participants to loud noise during a memory-encoding task.The room was quiet for the other half of the participants.Later,all participants were given a memory test and the number of correct items recalled was obtained for each participant.The participants who encoded information in the noisy room constitute the:

Use the following to answer questions -(Scenario I)Which statement is true given that variables A and B are significantly correlated?

David engages in unethical research practices and changes the result of a statistical test from an otherwise ethically conducted study.David is engaged in:

People are more critical of new evidence that is:

A correlation coefficient (r)can range from 0 to 100.

Which characteristic describes a normal distribution?

A reliable measure is one that:

In an experiment,researchers exposed half of the participants to loud noise during a memory-encoding task.The room was quiet for the other half of the participants.Later,all participants were given a memory test and the number of correct items recalled was obtained for each participant.What is the independent variable?

The phrase "n = 1" means that:

A _____ correlation is associated with a less-is-more relationship.

A frequency distribution in which most measurements are concentrated around the mean and fall off towards the tails,and where the two sides of the distribution are symmetrical,is called a _____ distribution.

If an experiment is internally valid,then one can infer that:

Five extremely tall members of the university basketball team are among 30 students in an introductory psychology class.If a frequency distribution is taken of height,the distribution probably will be:

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

A sample taken from a population is signified by a lowercase n.

Describing length as "change in the location of light over time" is an example of a(n):

A set of rules and techniques for observation is termed an empirical:

An academic clinical psychologist uses Beck's Depression Inventory,a validated scale with scores ranging from 0 to 63,with higher scores indicating greater levels of depression,to measure depression levels in the population of 1,000 incoming freshmen students.She creates a frequency distribution of her findings.What should be displayed on the vertical axis?

A frequency distribution graphically displays the: