Exam 2: Methods in Psychology

Random assignment to groups is common when using the case method.

A psychologist who studies memory processes by investigating the remarkable ability of Akira Haraguchi to accurately recite pi to 100,000 digits is using:

According to the textbook,the second rule of critical thinking is to:

In the context of an experiment,the variable that is measured is termed the _____ variable.

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 one task involving maze-running speed,students working with "bright" rats were more likely to stop timing early,as soon as the rat approached the goal box.This unintentional measurement error illustrates how:

Using one's senses to learn about the properties of an event refers to:

Consistent with psychological research,politicians tend to surround themselves with advisors who:

The experimental and control groups differ on the dependent measure.Which result of an inferential statistic would indicate a statistically significant result?

Random _____ allows psychologists to generalize from the _____ to the _____.

Which number represents the WEAKEST correlation coefficient (r)?

Under which type of frequency distribution will the mode,mean,and median all assume the same value?

Use the following to answer questions -(Scenario II)Vigilance was measured as the percentage of "enemy targets" destroyed.As a measure of vigilance,this illustrates:

The scientific method was FIRST formalized by:

When one manipulates an independent variable,at least how many groups are created?

In studying the correlation between the amount of time children watch violence on television and children's levels of aggressiveness,researchers found that a lack of adult supervision could be a third variable.To control for the third variable,researchers observed children who experienced different amounts of supervision.They made sure that for every child observed who watched a lot of violence on television and was supervised X% of the time,they also observed another child who did not watch a lot of violence on television and was supervised X% of the time.This method is called:

Researchers wanted to see if listening to calm music would reduce heart rates.Half of the research participants sat quietly and listened to calm music,and the other half sat quietly and listened to no music at all.The group that did NOT listen to the music is called the:

A double-blind study:

Use the following to answer questions -(Scenario I)Each data point on the scatterplot represents:

If there are two different research methodologies that both would answer a particular research question,psychologists are obligated to use whichever methodology minimizes risk to participants.This illustrates which ethical principle?

As a feature of ethical research,the term just refers to which statement?