If a Participant Always Shows Fast Reaction Times on a Visual

question 107

Multiple Choice

If a participant always shows fast reaction times on a visual task not because she is good at the task but because she can hear the experimenter start the presentation and can get ready for the stimulus,her data will show a high level of:

• A) validity
• B) reactivity
• C) selection bias
• D) systematic error

---

Definitions:

Marshall Supreme Court

The period in United States history when John Marshall served as Chief Justice (1801–1835), noted for its landmark decisions that established the foundations of American constitutional law.

Congressional Powers

are the authorities granted to the United States Congress, including legislating, declaring war, and regulating commerce.

Convention of 1818

was an agreement between the U.S. and Britain that set the 49th parallel as the boundary between British North America and the United States, from the Lake of the Woods to the Rocky Mountains.

U.S./Canadian Border

The international boundary between the United States and Canada, stretching across North America and recognized as the world's longest undefended border.