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Font Paragraph Styles Probably the easiest way to begin understanding factorial

ID: 3063103 • Letter: F

Question

Font Paragraph Styles Probably the easiest way to begin understanding factorial designs is by looking at an example. Let's imagine a design where we have an educational program where we would like to look at a variety of program variations Factors: Major Independent Variables Levels: Subdivisions of Factors -TimeIn Instruction 1 hour/week - 4 hours/week Group 1 Group 3 average average a Group 2 Group4 average average to see which works best. we would like to vary the amount of time the children receive instruction with one group getting 1 hour of instruction per week and another getting 4 hours per week. And, we'd like to vary the setting with one group getting the instruction in-class (probably pulled off into a corner of the classroom) and the other group being pulled-out of the classroom for instruction in another room. We could think about having four separate groups to do this, but when we are varying the amount of time in instruction, what setting would we use: in- class or pull-out? And, when we were studying setting, what amount of instruction time would we use: 1 hour, 4 hours, or something else? For instance,

Explanation / Answer

Here the most fundamental aspect of factorial designs is being discussed. Fundamentally, the factors are the independent variables, each of which have some finite number of states. here, we have taken the simplest of cases: two factors, each with two states. We also call it as a 2 x 2 (read as "two-by-two") design.

There is no "hindrance" as such, for the overlapping of factors. That is, when we vary the amount of time, the setting could be both in-class or pull-out. Similarly, when we study setting, the amount of instruction time could be any of the possible options.

In fact, this freedom to overlap the different factors is one of the most fundamental aspects of factorial design, allowing us to study their interrelationships.

For your reference, a detailed analysis of this problem is given at the following link

https://socialresearchmethods.net/kb/expfact.php