A Manipulation Check Is Especially Important in Studies

question 55

Multiple Choice

A manipulation check is especially important in studies

• A) using double-blind procedures.
• B) when nonsignificant results are obtained.
• C) using independent groups.
• D) where demand characteristics are minimal.

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Definitions:

Leukocytes

White blood cells that are part of the immune system, protecting the body against infection and disease.

Specific Gravity

The ratio of the density of a substance to the density of a reference substance; usually water for a liquid or solid, and air for a gas.

Gram-positive

Bacteria that retain the crystal violet stain used in the Gram staining method, indicating a thick peptidoglycan layer in their cell walls.

Gram-variable

Bacteria that do not consistently stain as either Gram-positive or Gram-negative due to variations in their cell wall structures.