Dr Slabbert Plans on Introducing a New Exam Review Procedure

question 15

Multiple Choice

Dr Slabbert plans on introducing a new exam review procedure in his chemistry classes. To check the effectiveness of the new procedure he is going to have half his students try the new technique for one semester, while the remaining students review in the way they have always done in the past. He asks each student to decide which of the techniques they would like to use, the new technique or the standard technique. In this example, Dr Slabbert's procedure illustrates

• A) the use of non-random assignment.
• B) a correlational research design.
• C) a double-blind research design.
• D) what is meant by informed consent in research.

Distinguish between self and non-self cells by lymphocytes.

Understand the role of different immunoglobulins in the immune response.

Grasp the concept and importance of antigen presentation.

Appreciate the distinctions between innate and adaptive immunity.

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Definitions:

R

A programming language and software environment used for statistical analysis, graphics representation, and reporting.

Correlation Matrix

A table showing the correlation coefficients between sets of variables to summarize their mutual relationships.

Pearson Correlations

A measure of the linear correlation between two variables, quantified by the Pearson correlation coefficient, ranging from -1 to 1.

Variables

Elements, features, or factors that are likely to vary or change among individuals or experiments.