A Researcher Who Is Faced with the Problem of Non-Response

question 4

Multiple Choice

A researcher who is faced with the problem of non-response can attempt to reduce the potential bias of the results by

• A)replacing each non-respondent with a "matched" member of the sample.
• B)making repeated contacts, or call-backs, with non-respondents.
• C)improving the research design.
• D)estimating the non-response bias.
• E)all of these.

---

Definitions:

ATP

Adenosine triphosphate, a molecule that provides energy for many processes within living cells.

Extracellular Matrix

A complex network of proteins and carbohydrates surrounding cells, providing structural and biochemical support to surrounding cells.

Facilitated Diffusion

A process of passive transport, facilitated by transport proteins, allowing molecules to move across cell membranes along a concentration gradient without energy expenditure.

Active Transport

The movement of substances across cell membranes against their concentration gradient, requiring energy.