Exam 2: Studying Behaviour Scientifically

Dr.Sandeep wants to study the spending habits in London residents.To study this,he hands out questionnaires about spending habits to all of the students in his introductory psychology class.Dr.Sandeep's data will be __________ because ________.

A placebo effect makes it difficult to draw cause and effect conclusions because we cannot tell whether

A major difference between experiments and correlational studies is

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

After writing his Biology exam,Sam's professor announces that the grades from the exam were normally distributed with a mean of 60 and a standard deviation of 10.Sam's grade on the exam was 70.Approximately what percentage of the class had a grade on the exam that was higher than Sam's?

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?

Typically,when psychologists conduct an experiment,they are willing to a ___ percent chance that the results are random and are due to chance.

Which of the following is NOT a characteristic of a good theory?

If a measure of behavior is reliable,then it is considered to be

Which of the following research methods is MOST susceptible to threats to internal validity?

Random assignment is important in research because

Considering the following data set: (3,4,4,0,4,1,5),which of the following statements is/are FALSE?

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 _____.

Dr.Jonas is interested in how parents interact with their children.So she goes to a local daycare centre and watches how parents greet their children when they come to pick them up at the end of the day.This study could best be described as

If a researcher is conducting an experiment,the researcher will _________.

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?

An advantage of the case study method is that it ________,whereas a disadvantage of the case study method is that it _________.

A researcher who is interested in studying the effects of the amount of study time on exam anxiety selects a group of students to take part in her study.One group of students is allowed 10 hours of study time and a second group is allowed 20 hours of study time.Immediately before the exam,the researcher assesses each student's level of anxiety by measuring their blood pressure and heart rate.In this study,the independent variable is the ________,and the dependent variable is the ____________.

Which of the following is/are TRUE of the normal distribution (bell-shaped curve)?

An experimental design in which all participants are exposed to all of the conditions of an independent variable is called