All of the Following Are Possible Threats to Internal Experimental

question 1

Multiple Choice

All of the following are possible threats to internal experimental validity EXCEPT:

• A)mortality.
• B)external validity.
• C)history.
• D)maturation.
• E)testing effects.

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Definitions:

Capsules

Small soluble containers, usually made of gelatin, that enclose a dose of medicine for oral intake.

Tablets

Portable, flat screen computers that use touchscreens as their primary input device, often used for browsing the internet, reading ebooks, and other multimedia tasks.

Sugar Pills

Placebo tablets made of sugar and other inert substances, used in clinical trials to test the effectiveness of medications.

Placebo Effects

Positive changes in a patient's condition after receiving a treatment with no therapeutic effect, attributed to the individual's belief in the treatment's efficacy.