. Compare and contrast random selection and random assignment.
What will be an ideal response?
Ans: Random selection refers to creating a sample of the population to use in a research study. Random selection is important if the researcher wants to generalize from the sample to the population. Random assignment refers to taking sample members (obtained from other methods of sampling such as convenience or purposive sampling) and randomly assigning them to experimental conditions. Random assignment is involved in developing comparison groups that are similar before the beginning of the experiment. Because the groups are similar before the experiment begins, differences in them at the end of the study are attributed to the independent variable. Many research studies are not able to use random selection, instead they use random assignment to groups in their designs and count on replications by others with other samples to provide evidence of generalization.
You might also like to view...
According to the SCREAM method for helping teachers remember important behaviors when delivering information,
the “R” stands for a. resistance b. redundancy c. rapport d. review
Discuss the four steps to problem-solving
What will be an ideal response?
CHANGE-ADD-TO and EQUALIZE are examples of
a. the approaches children use when counting and enumerating b. forms that addition and subtraction problems can take c. frequently occurring bugs in addition and subtraction d. ways of making estimates about possible problem solutions
Schools are inherently political and as such knowledge is not
a. Biased b. Determined by those in power c. Neutral d. Full of cultural assumptions