Exam 2: Scientific Methods in Psychology

Two serious objections to claims of extrasensory perception are that the explanations are not ____________________ and that the results are not ____________________. parsimonious;replicable

What evidence did Oskar Pfungst present to indicate that Clever Hans was not doing mathematical calculations?

An illusory correlation is

Why do investigators sometimes repeat an experiment that other researchers have already completed?

Demand characteristics can be reduced by using a double-blind procedure.

If the standard deviation is small,then

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

A scientist has formed the following hypothesis;individuals who eat a late lunch consume more food than individuals who eat an early lunch.Once she has constructed her hypothesis,what are the three steps that she should follow to complete her experiment? State the steps and give an example of how to complete each step.

Suppose some unscrupulous researcher made up results and got them published.In the long run,people will not take them seriously because presumably the false results will not be

Falsifiability,independent variables,dependent variables,blind observers,and demand characteristics are all potential characteristics of an experiment.Which of these would an experimenter try to minimize or avoid and why?

The advantage of randomly assigning participants to the experimental group and the control group is that random assignment

The main ethical principle guiding psychology experiments with human participants is

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?

Researchers find that happy people tend to be healthier than unhappy people.From this kind of information,which of the following (if any)can we conclude?

To examine the value of looking at old tests,Professor King hands out copies of old tests to the first 20 students who come to class one day.Later she finds that these students got better grades than the other students in the class.What is wrong with this experiment?

According to one report,people with higher levels of stress have a greater probability of suffering a heart attack.Therefore the correlation between stress and probability of a heart attack is

A result is replicable if

One of the main objections raised against ESP is that

We would find it difficult to accept the idea of a horse performing algebraic equations because we regard it as

A testable prediction of what will happen under a specific set of conditions is known as a/an