Pretesting a problem for generalization is helpful because the researcher can check to see if the groups are equivalent. Researchers can also assess mortality effects and determine if the people who withdrew are different from those individuals who finished the study. Pretesting may affect the ability to generalize results because the results can not be generalized to people who were not given a pretest, and pretests are rarely conducted in day-to-day living (Cozby, 274).
4. Distinguish between an exact replication and a conceptual replication. What is the value of a conceptual replication?
An exact replication is a researcher's attempt to exactly duplicate a study's procedures to determine if similar findings can be obtained. A conceptual representation tries to replicate the findings of a research study by manipulating the...
A conceptual replication is valuable because the researcher can determine whether or not the results of the study are generalizable by manipulating or measuring the variables differently than they were used in the first study (Cozby, 2009, 277).
5. What is a meta-analysis?
A meta-analysis is a quantitative technique for comparing a large number of studies in an area. The researcher examines the results for many different studies and combines the results of the studies using statistical procedures to compare given findings. A meta-analysis has several advantages over a literature review. First, definitive conclusions can be drawn from the findings. Secondly, relationships between variables can be examined by comparing the different studies. Last, the meta-analysis can offer comparisons between effect…
