Given the following research topic answer the questions belo

Given the following research topic, answer the questions below: Are there differences in third grade reading scores between children who attended independent preschool, district provided preschool, or no outside preschool? What is the dependent variable(s)? What is the independent variable? Identify any levels of the variable. Why is this an example of ex post facto research and not correlational? Why is this an example of ex post facto research and not experimental? What extraneous variables might there be in this study? Identify and describe at least three. Select one of the potential extraneous variables and suggest oneway to \'control\' that variable

Solution

The dependent variable here is the reading score obtained by a child in third grade.

The independent variables are \"type of pre school attended by the children\". The levels of which are \"Independent PreSchool\",\"District Provided PreSchool\" \"No outside Preschool\".

Ex-post facto research means studying a variable which is out of control of experimenters hand.Here one such variable is present i.e.\" type of pre school attended by a child\" this cannot be controlled by the expreimenter.Moreover Ex-post facto research extends to studying how this \"uncontrolled variable\" affects the dependent variable (in our case which is reading score). On the other hand correlational research deals with the situation where relationship 2 or more quantitative variable is under consideration. Precisely this is not the case here since our independent variable is categorical.

Moving on , and Ex post facto research is an quasi-experimental research that is the participants are not randomly assigned like in a true experiment. Here we only look for a variable\'s (which present prior from the experiment) influence on other