Exam 9: Conducting Experiments

A researcher who measures the speed of helping to a request is using a _____ measure.

Rachel compares the math skills of boys and girls in the sixth grade.She administers a series of math problems to both groups and asks them to solve as many problems as they can within a 15-minute time period.She finds that both groups were able to answer only 2% of the problems.The result obtained can be due to the _____ effect.

Which of the following is an assumption in the context of staged manipulations?

The issue of _____ is particularly important when measuring human performance.

In staged manipulations,a(n)_____ appears to be another participant in an experiment but is actually part of the manipulation.

Promelute,a pharmaceutical company,conducts a research on participants for its new drug for obsessive-compulsive disorder.But the experimenter is unclear about the conclusions of the study because he is not sure if the improvement has been caused by the properties of the drug or by the participants' expectations about the effect of the drug.Such an effect is known as a(n)_____ effect.

Katherine is a researcher who is interested in examining the effect of caffeine on driving performance.In order to rule out a change in behavior brought about because of participants' expectations about the effect of caffeine,she should use a(n)_____.

In the early stages of a research project,the researcher would want as _____ as possible in order to demonstrate that a relationship between variables exists.

Yvette,an investigator who is interested in the effectiveness of various memory strategies,instructs randomly assigned participants to use either imagery or repetitive silent speech to remember a list of 20 words.Two weeks later,she tests these participants for how many words they can recall.The imagery group recalls an average of 2.6 words,while the repetition group recalls an average of 1.9 words.She concludes that there is no difference in the effectiveness of these memory strategies because the results are not statistically significant.Is this a reasonable conclusion?

Adam measures the length of time two people spend gazing into each other's eyes as an indication of interpersonal attraction.Which type of measure is Adam using?

In the context of staged manipulations,a confederate is a person who:

In a shopping mall,a marketing researcher asks a customer if he or she would prefer soda in a bottle or soda in a can.The customer's response would be an example of a _____ measure.

Electromyogram and electroencephalogram are examples of _____ measures.

Matt,a researcher,has a confederate drop a stack of papers in front of one person or a group of people.She then measures the amount of time it takes for the confederate to receive help in picking up the papers.The manipulation employed in this experiment would be an example of a _____ manipulation.

Which of the following offers a solution to the problem of experimenter bias?

In the context of measuring the dependent variable,_____ measures are recordings of responses of the body.

_____ are important opportunities for researchers to present their findings to other researchers and the public.

In order to analyze the effects of a new drug for anxiety developed by Solvit Wellness Inc. ,the researchers conduct a study on two groups.Both groups are informed about the usefulness of the drug in treating anxiety.However,only group A receives an injection of the actual drug,while group B receives an injection containing an inert substance.In this case,what is group B known as?

While Leo is performing a cognitive task,a researcher uses a physiological measure that scans various areas of his brain.In this case,the researcher is most likely using a(n):

Mr.Louise,a psychologist,is interested in the effect of physical attractiveness on ratings of punishment assigned to a driver in an automobile accident.Participants read an account of the accident and received a written description of a physically attractive or unattractive defendant.The manipulation of attractiveness would be an example of a _____ manipulation.