Quasi-Experimental Designs Essay Example | Topics and Well Written Essays - 250 words

Quasi-Experimental Designs - Essay ExampleS., (1992). Sex Differences in Performance on the Mathematics Section of the Scholastic Aptitude Test A Bidirectional Validity Study. Harvard Educational Review. Vol. 62(3), pp. 323-337. Reason for choice Studies like these are part of true literature on abilities and on psychological testing. The take aim also provides support for the urban legend that boys (males) are better at mathematics as compared to girls (females). This study also provides a perfect example for understanding quasi-experimental designs, since the selection of subjects in each group can be randomised perfectly but the true manipulation of the Independent variable is impossible. Variables The independent variable for this study is the sex of the participant, and the dependent variable is the score obtained by the participant on the mathematics role of the SAT. Alternate research design The same study results would be more valuable if the effect of study background wa s removed. This can be done by using a measuring the extent to which the subject has studied mathematics or mathematics dependent subjects in the two years before bighearted the exam and then removing the effect of this variable from the data by using an Analysis of Co-Variance.