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Researchers Collect Data Through Various Formats; Questionnaires and Student Portfolios

question 26

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Researchers collect data through various formats; questionnaires and student portfolios are ______.


Definitions:

Randomized Block Design

A statistical experiment design that attempts to remove the effects of known confounding variables by grouping similar experimental units together into blocks before randomly assigning treatments.

Tennis Players

Individuals who play tennis, either professionally or as amateurs.

Blocking

A technique used in experimental design to reduce sources of variability within a test by grouping experimental units that are similar in ways that are expected to affect the response to the treatments.

Extraneous Factors

These are variables that affect the relationship between the independent and dependent variables but are not the variables of interest in the study.

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