Often, we do not know at the start of an experiment what extraneous variables could affect our results. The best means of controlling for unknown sources of extraneous variables is:

a. Random selection
b. Random assignment
c. Sequencing
d. Analysis of covariance


Ans: b

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Sam, a newly appointed elementary school teacher, has prior work experience as a babysitter and a camp counselor. During his tenure as a babysitter, he realized that he loved kids and enjoys being around them. Because of his love for kids, he decided to take up teaching as a full time career. Now, as an elementary school teacher, Sam feels that he is unable to meet the demands of the profession

He feels there is a conflict between what he anticipated and what he actually experiences as a teacher. In this scenario, which of the following is a reason for Sam being a career misfit? A) Informal experiences with children are different from the more structured experiences found in classrooms. B) Elementary school teachers need to have a minimum of four years of work experience as a preschool teacher. C) The job of an elementary school teacher is not as satisfying as that of a babysitter. D) The learning process is more sophisticated and structured in playschools than in elementary schools.

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The cause-and-effect pattern of writing is found in both social studies and science

Indicate whether the statement is true or false.

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When assessing the physical space's complexity of play units, simple units are characterized by

a. play material or piece of equipment has only one use and is obvious to children. b. three or more play materials juxtaposed. c. a play option that has subparts or different materials. d. play material or equipment that can only be used by one child.

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Teachers prefer to use checklists because they require very little time for recordkeeping

Indicate whether the statement is true or false

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