Exam 2: Scientific Methods in Psychology

In one word, why did most scientists resist the belief that Clever Hans could do complex mathematics, even before they had a good explanation of what he was actually doing?

Which of the following is an operational definition of "grief"?

In both the U.S. legal system and in scientific disputes, the "burden of proof" falls on

An investigator repeats the procedures of another researcher's experiment but obtains different results. Scientists would say that the results of the first experiment were not

Researchers have found that people who live in crowded cities are more likely than others to develop schizophrenia (a psychological disorder). From these results, which of the following conclusions (if any) can we draw?

Clever Hans could answer a question correctly only if he

The main ethical principle guiding psychology experiments with human participants is

Clever Hans was

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

A proponent of ESP claims that ESP shows up only when the vibrations are right and that there is no way to know whether the vibrations are right except to see whether ESP shows up. What is wrong with this theory from a scientific standpoint?

Before conducting any experiment on humans, a psychological investigator must obtain

The mean, median, range, and standard deviation are all examples of

Random assignment is

Juanita has a headache one evening so she takes the experimental drug Zenax to eliminate her headache. She goes to sleep and finds her headache gone the next day. Do these results show that Zenax was effective?

Which of the following would be most likely to rely on naturalistic observations?

What is a hypothesis?

A researcher announces that according to a recent survey, 78% of all American workers say they have cheated their employer in the past year. Before we can interpret these results, which of the following questions would be most important to ask?

"Falsifiability" is considered a desirable characteristic for a scientific theory because a falsifiable theory

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?

Which of the following is undesirable for psychological research and theories?