Exam 2: Studying Behaviour Scientifically

Professor Bono believes that there is a correlation between number of hours spent on social media and grades in first-year classes. Which of the following correlation coefficients would provide the STRONGEST support for her prediction?

Dr. Kiel is designing a study to test the effectiveness of a new anxiety medication. The study includes a placebo control group and neither the participants nor the research assistants who give out the medications know whether a participant is receiving the actual drug or a placebo. This study is a good example of:

After writing the licensing exam to practice Psychology, Dr. Evans is sent the following information: Her grade on the exam was 550. The scores on the exam were normally distributed with a mean of 450 and a standard deviation of 100. How well did Dr. Evans do on the licensing exam?

Imagine that someone has developed an absurd theory that asserts that every child with blond hair will be over 6 feet tall when they are adults. An adult friend of yours is blond but happens to only be 5'6". This example best demonstrates which of the following advantages of the case study method?

A researcher conducted a study relating the time parents spent with their children to their children's happiness. From a correlational analysis of the data, the researcher concluded that happier children are a result of parents spending more time with them. The Possibility that the parents spent more time with their children in response to the fact that their children were happier is an example of:

Elyse is interested in studying aggression. To do so, she decides to look at horn-honking behaviour at stop signs and records the number of times someone honks their car horn before the car in front moves on. In this example, horn-honking is the and the Number of honks recorded is the _.

As an alternative to random assignment, researchers will sometimes design experiments where each participant is exposed to all conditions or groups in an experiment. This second procedure controls for differences between individual participants by:

In order to estimate the results in a local election, a pollster contacts a select group of people and asks them how they voted. The pollster is using which of the following research methods?

Which of the following statements regarding the differences between experimental and correlational research is true?

A researcher is interested in the effects of a vegetarian diet on memory. One group eats a strict vegetarian diet for three months, a second group eats a strict vegan diet for three months, while a third group eats anything they want for three months. After three Months, all participants are given a memory test. Results indicated that memory was is Better for both the vegetarian and vegan groups. In this study, the independent variable is

As part of their research on bystander apathy, John Darley and Bibb Latané created fake "emergencies" in their experimental laboratory and observed people's responses. When making these observations, what step of the scientific process were they engaged in?

In a famous experiment by Robert Rosenthal and Lenore Jacobson (1966), teachers at an elementary school were told at the beginning of the year that certain students were "late bloomers" and most likely these particular students were going to become strong students during the school year ahead. Sure enough, by the end of the year, the identified students were doing much better in school. Interestingly, the researchers had selected These children randomly at the beginning of the year and they had no real evidence on which they could base their predictions. The findings in this study are most similar or analogous to the problem of:

In an experiment, the independent variable is the one that is manipulated by the researcher.

Two research assistants trained to code the type of interactions observed between siblings, repeatedly disagree on how to code siblings' sarcastic comments toward one another. The resulting data may then be:

When participants are misled about the nature of an experiment, researchers refer to this as:

Canadian researchers Thompson, Schellenberg, and Husain conducted an experiment in which they assigned university students to either a group that listened to a Mozart Sonata (happy music) or a group that listened to an Albinoni Adagio (sad music). Thompson et al. concluded that what previous researchers had called the "Mozart effect" was really an artifact of the participants' arousal and positive mood. Thompson et al. were claiming that:

Random assignment is important in research because

What three key attitudes did John Darley and Bibb Latané display in their research on "bystander apathy"?