Social Variables Tammy's Experiment Compared the Effectiveness of Videotape and Textbook

question 49

Multiple Choice

Social Variables Tammy's experiment compared the effectiveness of videotape and textbook presentation of a history lesson.Unexpectedly, her demeanor changed with each treatment condition.She appeared worried during the videotape condition because the audiovisual equipment periodically broke down.In contrast, she seemed relaxed in the textbook condition during which subjects read from a book.Which problem does this illustrate?

• A)confounding by a context variable
• B)experimenter bias
• C)history threat
• D)selection threat

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Definitions:

Eyewitness Memory

The recall by individuals of events they have witnessed, significant in legal contexts but known for its potential for inaccuracy and susceptibility to suggestion.

Prone to Error

Having a higher likelihood or tendency to make mistakes or inaccuracies.

Questioning

The act of asking questions to seek information, understand, or challenge.