Exam 8: Two-Group Design: Texting: I Cant Get You Out of My Mind

Sofia notices that her friends engage in superstitious behavior, like knocking on wood for good luck and wearing "lucky" clothes on important days. To investigate the usefulness of such behavior, she conducts an extensive literature review to find relevant data in a number of common superstitions. Imagine the results she found were as follows: Knocking on wood: t(51) = 4.12, p = .45, d = .24 Throwing salt over the shoulder: t(73) = 0.05, p = .87, d = .17 Avoiding black cats: t(62) = 6.96, p = .12, d = .33 Please compare and contrast these findings to draw conclusions about each superstition under investigation.

A confederate is:

_____ is the magnitude of difference between the experimental and control groups.

Penelope is investigating the hypothesis that wearing a watch makes people more punctual. In her study participants in the experimental group are those who are assigned to _____, while participants in the control group are assigned to_____.

You are interested in investigating whether blondes really do have more fun. To do so, you ask a group of blondes and a group of brunettes to self-report on their level of fun. In this study, _____ would be considered the independent variable, whereas _____ would be considered the dependent variable.

In designing an experiment, the _____ should be developed before the _____.

A sensitive measure is one that:

Imagine you are a journal editor. Researchers send you their manuscripts and your job is to make sure their results merit sharing with others in the psychological community. Which of the following studies would you LEAST want to publish?

Independent samples t-tests compare _____ groups.

In designing an experiment, a _____ measure would give you the most objective and sensitive assessment of the dependent variable?

Why do researchers often choose to conduct experiments in a laboratory?

In an experiment, a null hypothesis states that:

After data collection, an experimenter must do each of the following, EXCEPT:

Distinguish which of the following is NOT a benefit that experimental designs offer over nonexperimental designs?

To answer a research question, one must accomplish each of the following tasks, EXCEPT:

The formula for the experimental hypothesis is:

Give an example of an experimental hypothesis that a researcher would want to examine using a matched-pair design.

A factor other than the intended treatment that may change the outcome variable is known as:

For which of the following test statistics would a score of 0 indicate significance?

Professor Carlson is interested in understanding whether uniform color impacts football players' performances. In his study, _____ is manipulated and _____ is measured.