Research Design and Statistics

An experiment is conducted on the effects of consuming caffeine on how well a student performs on a maths test. What is the independent variable? What is the dependent variable?

An experiment is conducted on the effects of consuming caffeine on how well a student performs on a maths test. Which is the experimental group? Which is the control group? The group that:

The ____________ variable is the variable hypothesised to affect the _______________ variable.

In an experiment, the experimental and control groups should be very similar except for ______________________.

The first step completed before conducting an experiment involves

In an experiment, subjects should ___________ groups before the ____________________ variable is manipulated.

Which of the following lists the steps involved in conducting an experiment in the correct order?

A group of athletes run a mile on two different days. One day, the athletes eat a nutritional bar immediately before running the mile. They do not eat this bar before running the mile on the second day. The control group in this experiment is

Two groups of students in an experiment were allowed to study for different amounts of time (15 minutes vs. 2 hours) and to take a different format (open book vs. closed book) in order to determine which condition led to the highest score. Which statement is true?

Students took a test in one of two conditions - either in a quiet room, or in a room with very loud music. At the end of the experiment, in addition to looking at their test scores, researchers also collected students' ratings of anxiety and self-esteem. This experiment included _______ independent variable(s) and _______ dependent variable(s).

A clinical psychologist uses the Beck Depression Inventory to determine whether taking a new antidepressant medication reduces the number of depressive symptoms shown by patients suffering from bipolar disorder. Comparisons are made between subjects who are given the antidepressant daily and subjects who are given the pill with no real medication. Which is the independent variable?

A clinical psychologist uses the Beck Depression Inventory to determine whether taking a new antidepressant medication reduces the number of symptoms shown by patients suffering from bipolar disorder. Comparisons are made between subjects who are given the antidepressant daily and subjects who are given pills with no real medication. Which is the dependent variable?

A clinical psychologist uses the Beck Depression Inventory to determine whether taking a new antidepressant medication reduces the number of symptoms shown by patients suffering from bipolar disorder. Comparisons are made between subjects who are given the antidepressant daily and subjects who are given pills with no real medication. Which is the experimental group?

A clinical psychologist uses the Beck Depression Inventory to determine whether taking a new antidepressant medication reduces the number of symptoms shown by patients suffering from bipolar disorder. Comparisons are made between subjects who are given the antidepressant daily and subjects who are given pills with no real medication. Which is the control group?

An educational psychologist wants to see whether test-wiseness training leads to improved grades in a sample of adult students who are returning to college. She compares subjects who are assigned to a test-wiseness seminar against subjects who were not told about the seminar. Which is the independent variable?

An educational psychologist wants to see whether test-wiseness training leads to improved grades in a sample of adult students who are returning to college. She compares subjects who are assigned to a test-wiseness seminar against subjects who were not told about the seminar. Which is the dependent variable?

An educational psychologist wants to see whether test-wiseness training leads to improved grades in a sample of adult students who are returning to college. She compares subjects who are assigned to a test-wiseness seminar against subjects who were not told about the seminar. Which is the experimental group?

An educational psychologist wants to see whether test-wiseness training leads to improved grades in a sample of adult students who are returning to college. She compares subjects who are assigned to a test-wiseness seminar against subjects who were not told about the seminar. Which is the control group?