Suppose the Wilcoxon Signed-Rank Test Was Used on Seven Pairs

question 7

Multiple Choice

Suppose the Wilcoxon signed-rank test was used on seven pairs of data. If the calculated test statistic for a two-tailed test was found to be 5, at α = 0.05 we can conclude that

• A) The null hypothesis should not be rejected and that the groups are all the same.
• B) The null hypothesis should be rejected and that the groups are not all the same.
• C) The null hypothesis should not be rejected and that the groups are not all the same.
• D) The null hypothesis should be rejected and that the groups are all the same.
• E) The groups are different.

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Definitions:

Pattern Theory

suggests that sensory information is represented in the brain as patterns of neural firing, which are recognized and interpreted based on learned experiences.

Sensory Qualities

Characteristics of objects or events that are perceived by the senses, such as taste, smell, sound, touch, and sight.

Activation

In psychology, it often refers to the arousal level or the state of being prepared to act, which can be triggered by various stimuli or internal processes.

Detection Experiment

A type of experiment in psychology and neuroscience focusing on identifying the threshold at which a stimulus is perceived by participants.