Exam 2: Psychologys Scientific Method

A _____ design is a type of correlational study in which variables are measured at a single point in time and then observations from this single measurement are compared.

Dr.Wong is conducting an experiment on conformity.His research subjects include all of the students who are taking his introductory sociology course.In the context of the research,this entire group of students is referred to as the

Chris makes an observation that the longer a classroom lecture,the lower the attentiveness of students in the class.In the context of correlational research,the length of the lecture and level of attentiveness are said to have a

The first step in the scientific method of psychology is formulating hypotheses and predictions.

In the context of inferential statistics,a confidence level of .05 means that

In an experiment,the independent variable is what the experimenter arranges or has control over to allow a comparison.

Justin,a psychologist,wants to study the behavior of call center employees when they attend a call.Which of the following research settings would be most effective for this study?

In the context of psychological research methods,_____ research is conducted to determine whether a causal relationship exists between two variables.

When psychologists conduct a study,a _____ sample gives every member of the population an equal chance of being selected.

After careful observation,Dylan states a hypothesis that spending money on other people leads to greater happiness than spending money on oneself.In accordance with the scientific method,which of the following steps is Dylan most likely to take next?

Dr.Kingston,a psychologist,is examining how a student's reading speed is differently affected by two variables: being tutored by a teacher's assistant and being tutored by a computer-based reading program.In this experiment,which of the following is the dependent variable?

Researchers' assignment of participants to groups by chance in order to reduce the likelihood that an experiment's results will be due to preexisting differences between groups is known as _____ assignment.

When a psychological study uses deception,the principle of informed consent is violated.

Dr. Gillespie conducts an experiment on childhood aggression. She has two groups in her experiment. She places participants into each group by flipping a coin. Heads places them in group A; tails places them in group B. In this experiment, Dr. Gillespie has satisfied the requirement of

In the context of evaluating a theory,meta-analysis refers to the process of establishing causal relationships between variables.

In an experimental research study,which of the following groups is an experimental group?

Alfred conducted a study on the relationship between playground aggression observed in 5-year-old boys and their time spent playing with toy guns. The data he obtained gave him a correlation coefficient of +0.64. Explain what this coefficient means with reference to a graph, indicate the approximate appearance of the line, and discuss the strength and direction of the relationship.

In psychological research,a correlational study is used to determine

In a drug study,giving individuals in the control group a placebo pill allows researchers to determine whether

Saundra says that whenever she drinks coffee in the evenings it interferes with her ability to fall asleep.The more coffee she drinks before sleeping,the less sleep she gets.In the context of correlational research,Saundra is describing a _____ between caffeine intake and sleep.