Exam 2: Research Methodology

In which of the following studies would the concept of reactivity be most relevant?

If a researcher does not have a clear operational definition of the behaviour he is studying, he might experience:

Self-report questions in which the investigator provides answers from which the respondent chooses are called:

In order to look good, respondents sometimes give incorrect answers on a questionnaire. This behaviour illustrates:

If a researcher was denied permission to conduct a study because participants might suffer harm, that decision would have been made by:

Dr. Lasagna tests a new diet. Overweight adults are weighed and placed into one of two groups so that the weight of the groups is equal to start with. One group of adults is given the new diet and the other is placed on a waiting list. After three months, Dr. Lasagna observes that the group on the new diet weighs less. In this example, the adults who receive the new diet are:

If a researcher wants to make a judgment as to whether the data from her sample would be like data in the population, she would use:

A store owner wants to make sure she has enough shirts in the right sizes in her inventory, so she buys a lot of shirts in the most popular size. In order to make this purchase, what type of statistic would she want to know?

The systematic recording of overt behaviour of human and nonhuman animals in their natural environment involves what research method?

Gwen is studying the effects of comedic film on depressed participants. She is concerned that the data collectors will produce biased observations if they know the purpose of the study. She addresses this problem by using a(n):

A researcher wants to investigate the response of students on a university campus to a plan to turn a grassy area into a parking lot. She plans to give a questionnaire to a random sample of students. It is likely that:

Dr. Lasagna tests a new diet. Overweight adults are weighed and placed into one of two groups so that the weight of the groups is equal to start with. One group of adults is given the new diet and the other is placed on a waiting list. After three months, Dr. Lasagna observes that the group on the new diet weighs less. In this example, the dependent variable is:

In order to maximize the likelihood that experimental and control groups are similar before any treatment is applied, researchers typically use:

When researchers document that a phenomenon is real by repeating a study done by another scientist, they are engaging in:

There is a correlation between depression and memory: more frequently depressed people often have worse memory than less frequently depressed people. Genetics, however, may have an effect on a study participant's depression and memory. This is known as:

The precise way a researcher measures and defines a variable is known as the:

The range and standard deviation are examples of:

The mean, median, and mode are all examples of:

If you wanted to conduct observational research but were concerned that the people you observed would change their behaviours due to reactivity, you could:

If a researcher asks a group of participants to record their thoughts or feelings at random times of the day, she is using: