Exam 2: Studying Behaviour Scientifically

There are many different ways to explain the causes of events and we can never be sure which explanation is correct.This is the major drawback of ______________ understanding.

Unrepresentative samples can lead to inaccurate projections about how an entire population of people would respond when using the ____________________ research method.

A psychologist suggests that,as there is a positive correlation between people who take more vacations and better physical health,people should take more vacations to improve their physical health.After thinking about this result,you realize that this association may be a result of a third factor: income.People with more income can afford more vacations and can afford better health care.This explanation best illustrates which limitation of correlational research?

Considerations about whether the setting of an experiment is public or private and the manner in which information gained in an experiment will be recorded and distributed are most relevant to which ethical area?

In a study looking at which factors influence interpersonal attraction,the researcher uses a very attractive person for an assistant.Interpersonal attraction is then assessed by whether subjects call up the attractive assistant to ask the person on a date.The method used to assess interpersonal attraction would be considered a(n):

If an experiment has a confounding variable,this significantly lowers its internal validity.

If there is a weak correlation suggesting that more exposure to media violence is associated with more aggressive behaviour,which would be the most likely correlation coefficient?

In order for a study to be considered an experiment,there must be both random assignment of subjects/participants to groups,and _______.

One of the main limitations of archival measures of behaviour is that they are vulnerable to the social desirability bias.

If a sample in a survey accurately reflects the important characteristics of the population from which it is drawn (e.g. ,the sample has 53% women and the population has 53% women),the sample is said to be:

A researcher wants to assess the effect of sleep on test performance.She brings students into the lab,gives each student an IQ test,and then asks them how much they slept last night.This would NOT be an experiment because

Assume that you are a researcher conducting a survey.Which of the following steps would be most important if you wanted to ensure that the sample in your survey is representative?

The first step in the scientific process is to:

A researcher wants to study the effect of child abuse on intellectual development.Which type of methodology would be ethically acceptable?

A psychologist decides that she will assess stress by measuring subjects' blood pressure.This is an example of a(n):

Researchers often manipulate more than one independent variable in experiments because it better captures the complexity of human behaviour.

Doing further studies to replicate research results is a way to demonstrate ________________ validity.

If a researcher conducting an observational study of people at a shopping mall is making use of an unobtrusive measure,which of the following will he NOT have to worry about?

Meta-analysis is used to:

In experimental research,the variable that is manipulated by the experimenter is called the ________________ variable.