Exam 2: Research Methods in Psychology

Deception is used in some research in order to

Sampling bias is a problem because it

Dr Botha is studying aggression in children and plans to define aggression as the number of times one child pushes or strikes another child.Defining aggression in this way would

If we view an experiment as an attempt to establish a cause-effect relationship, the ____ variable would be the cause, and the ____ variable would be the effect.

Which research method involves an in-depth investigation of an individual subject?

A variable, other than the independent variable, that appears to have influenced the dependent variable in a study is referred to as

The experimental procedure in which both the experimenter and subject are unaware of who is in the experimental and who is in the control group is referred to as the

If a researcher varies the loudness of music in a factory to observe its effect on the rate of productivity of the employees, the dependent variable is the

An experimenter tests the hypothesis that physical exercise improves people's mood.Subjects in the experimental group participate on Monday and Tuesday and those in the control group on Wednesday and Thursday.What is the dependent variable?

The ____________________ is the measure of central tendency that is most affected by extreme scores in a set of data.

As an adult ages, his/her physical strength declines.The relationship between age and physical strength is a(n)

If a lecturer surveyed his students about their attitudes concerning the public pension system and concluded that young adults doubt that they will ever receive public pension benefits, his conclusion would be flawed because

As the number of bystanders' increases, people are less likely to help someone who is in distress.This suggests that the size of a crowd and helping behaviour are

To discover whether residents of a city are in favor of building a new sports stadium, the team's owner randomly selected and interviewed 500 of the city's 500,000 residents.In this instance, the 500 people that the owner interviewed would be

Dr Herbst is interested in people's reactions to a controversial court verdict.Dr Herbst calls people at their home between the hours of 1:00 p.m.and 3:30 p.m.on a Tuesday afternoon.In this example Dr Herbst has MOST likely selected

The first step in a research study is the formulation of a(n) ____________________.

A researcher tries to make sure that subjects in the experimental and control groups are very similar to each other in order to reduce the effects of

In an investigation of the effects of caffeine on concentration, half the participants were given regular colas which contained caffeine and half were given decaffeinated colas.In this study, the decaffeinated colas are being used as

When the scores for a recent Chemistry exam were calculated, the mean was 60 and the median was 65.Later the lecturer discovered that one score had been recorded incorrectly; it had been entered into the computer as a 5, instead of as a 50.When this correction is made,

As correlation coefficients ____, the ability to predict one variable based on knowledge of the second variable increases.