Dr Schmidt Is Studying the Effectiveness of a New Reading

question 71

Multiple Choice

Dr. Schmidt is studying the effectiveness of a new reading program on children who have experienced an impoverished family background and low maternal involvement among minority children. She will separate children into two groups; one that gets the new reading program and one that uses the current reading program. She will also use random assignment to create her two groups. The groups created in this manner would NOT be comparable with regard to which characteristic?

• A) minority status
• B) maternal involvement
• C) family income level
• D) paternal education level

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Definitions:

Active Transport

Transport of a substance across a membrane that does not rely on the potential energy of a concentration gradient for the substance being transported and therefore requires an additional energy source (often ATP); includes carrier-mediated active transport, endocytosis, and exocytosis. Compare with diffusion and facilitated diffusion.

Pinocytosis

A cellular process by which cells engulf liquid particles through the formation of small vesicles.

Plasmodesmata

Cytoplasmic channels connecting adjacent plant cells and allowing for the movement of molecules and ions between cells.

Gap Junctions

Gap junctions are specialized intercellular connections between a multitude of animal cell-types, facilitating the direct transfer of ions and small molecules.