If a Researcher Rejects the Null Hypothesis She Is Concluding

question 40

Multiple Choice

If a researcher rejects the null hypothesis she is concluding that

• A) there are real differences between groups.
• B) there are no real differences between groups.
• C) differences between groups are due to chance.
• D) differences between groups are due to measurement error.

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Definitions:

Psychosurgery

A type of brain surgery, such as lobotomy, performed to alter behavior and treat mental illness by removing or destroying brain tissue.

Electroshock Treatment

Also known as electroconvulsive therapy (ECT), a psychiatric treatment in which seizures are electrically induced in patients to provide relief from mental disorders.

Memory Loss

The inability to remember information or experiences, ranging from temporary forgetfulness to chronic amnesia.

Prefrontal Lobotomy

A now rare neurosurgical procedure that was once used to treat mental disorders by cutting connections in the brain's prefrontal cortex.