A Type I Error Is When

question 15

Multiple Choice

A Type I error is when:

• A) We conclude that there is a meaningful effect in the population when in fact there is not.
• B) We conclude that there is not a meaningful effect in the population when in fact there is.
• C) We conclude that the test statistic is significant when in fact it is not.
• D) The data we have typed into SPSS are different than the data collected.

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Definitions:

IgM

Immunoglobulin M, a class of antibodies that is the first to be made by the body to fight a new infection.

Tolerance

Failure of the specific immune system to respond to an antigen.

Costimulation

An essential process in the immune response, involving a secondary signal to T cells from antigen-presenting cells, ensuring a proper and controlled immune activation.

Interleukin 2

A type of cytokine produced by T-cells that plays a critical role in the regulation of immune responses, including the activation and proliferation of lymphocytes.