In Desensitization Immunotherapy, an Antigen Is Used to Stimulate Cell

question 9

Multiple Choice

In desensitization immunotherapy, an antigen is used to stimulate cell 2, which can then stimulate cell 3 and cause the production of item 4. Identify cell 2, cell 3 and item 4.

• A) T helper 1 cell, T helper 2 cell, and IgG antibodies
• B) mast cell, T helper 2 cell, and IgE antibodies
• C) T regulatory cell, T helper 2 cell, and IgE antibodies
• D) T regulatory cell, T helper 1 cell, and IgG antibodies
• E) T regulatory cell, mast cell, and IgD antibodies

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Definitions:

Selection-By-Maturation Interaction

A potential threat to internal validity in experiments, caused when differences between groups change over time in a way that affects the dependent variable.

Pretest Sensitization

The effect that participation in a pretest may have on subjects' behavior in subsequent phases of a study, potentially biasing the results.

Time-Series Designs

Research methods that involve repeated observations of the same variables (e.g., individuals) over short or long periods of time.

Quasi-Experimental Designs

Study frameworks that aim to identify causal relationships but do not incorporate random allocation to intervention and comparison groups.