Exam 2: Scientific Methods in Psychology

One group of students who spent the weekend studying for the test got better scores than a group who spent the weekend camping.That statement could be the result of an experiment or a correlational study.To decide whether it was an experiment,we would have to know the answer to the following question:

A particular research study compares an experimental group with a control group.An analysis of the results reveals that "p < .05." Therefore,

In the statistical expression "p < .05," the "p" represents

John believes that Saturdays are more likely to be cloudy or rainy than weekdays are.However,he is relying entirely on casual impressions;he has never collected data systematically to test his hypothesis.His belief is most likely an example of

An investigator wishes to determine whether the difference between two groups of participants is statistically significant.To answer that question,the investigator must first determine the difference between the means of the two groups,the number of participants in each group,and

An anecdote is a

According to the results of one survey,95% of high-school students say they have been sexually harassed.Before you can decide how seriously to take these results,one of the most important questions you should ask is,

Animal research is responsible for much of what we know about all the following areas EXCEPT

Properly conducted experiments allow researchers to draw conclusions about cause and effect.

If someone plans to administer a survey to determine which event people think is the most important one of the 20th century,the person who administers the survey should definitely

The use of placebos in research is an attempt to minimize the effects of

Which of the following is ethical behavior?

If every individual in the population has an equal chance of being selected for a sample,the sample is said to be a/an ____________________ sample. random

Clever Hans was

Asking participants to give their informed consent prior to participating in a study is no longer required under ethical guidelines.

A falsifiable theory

Studies find that people who exercise regularly tend to have a more cheerful outlook on life.What conclusion,if any,can we draw from these data?

Professor Taylor provides a review session for half the students taking Psychology 101.Later he compares their test scores against those of the other students.What is the dependent variable in this experiment?

Some investigators claim they have taught monkeys to understand spoken English,but another scientist argues that the results might be due to a Clever Hans effect.What does this mean?

Which of these ways of conducting research generally uses the fewest participants?