Chapter 15
2. There are two main types of sampling methods and distinguishing between them is very important as they have very different uses. "The most important distinction that needs to be made about samples is whether they are based on a probability sampling method or a nonprobability sampling method" (Grinnell 297).
3. When taking a sample the size of it is very impotent to determining the validity of the research. "Unfortunately, researchers often cannot afford to sample a very large number of cases" (Grinnell 311). This mean they have to find the minimum amount needed to get accurate information.
Chapter 16
Thesis: Covers the many different designs that are available for research and the right one must be selected for the job at hand.
Observations:
1."An "ideal" experiment is one in which a research study most closely approaches certainty about the relationship between the independent and dependent variables" (Grinnell 316). Certainty is the goal of all studies and tests as it is what makes it so people can use the information reliably.
2. "An "ideal" experiment should use at least one control group in addition to the experimental group" (Grinnell 319). Using a control group is critical for the tests for if you don't then you can't be sure how good the information is.
3. The two group research designs talked about in the chapter were one and two group designs. "The main difference between the two classifications is that the one-group designs don't compare their research participants with another group" (Grinnell 322).
Chapter 17
Thesis: Focuses on the effects and benefits of single subject design.
Observations:
1. "This chapter presents how single-subject designs can be used to systematically test the effectiveness of a particular intervention" (Grinnell 344). Establishing the use of a particular way to do research helps narrow focus so there is not to much information at once.
2. "The purpose of monitoring is to systematically track a client's progress over time" (Grinnell 357). Gaining lots of information for a long period of time is a good way to reduce error. It also lets us see the effectiveness of a possible solution to an issue in action.
3."Because single-subject designs are often practice based, they may be easier to mitigate distrust of the researcher" (Grinnell 369). This mitigation would be a huge help for almost any experiment or test.
Question: Can you have to large of a sample size?
Thesis: Sampling is incredibly impotent for research and chapter 15 is on the basics of this process.
Observations:
1. "Sampling is very common in research studies, but sometimes it isn't necessary" (Grinnell 292). It is important to know when to use sampling in order to get the best effect from it and not waste any resources when it is not necessary. Just because something is common that does not mean it is always the right thing to do.2. There are two main types of sampling methods and distinguishing between them is very important as they have very different uses. "The most important distinction that needs to be made about samples is whether they are based on a probability sampling method or a nonprobability sampling method" (Grinnell 297).
3. When taking a sample the size of it is very impotent to determining the validity of the research. "Unfortunately, researchers often cannot afford to sample a very large number of cases" (Grinnell 311). This mean they have to find the minimum amount needed to get accurate information.
Chapter 16
Thesis: Covers the many different designs that are available for research and the right one must be selected for the job at hand.
Observations:
1."An "ideal" experiment is one in which a research study most closely approaches certainty about the relationship between the independent and dependent variables" (Grinnell 316). Certainty is the goal of all studies and tests as it is what makes it so people can use the information reliably.
2. "An "ideal" experiment should use at least one control group in addition to the experimental group" (Grinnell 319). Using a control group is critical for the tests for if you don't then you can't be sure how good the information is.
3. The two group research designs talked about in the chapter were one and two group designs. "The main difference between the two classifications is that the one-group designs don't compare their research participants with another group" (Grinnell 322).
Chapter 17
Thesis: Focuses on the effects and benefits of single subject design.
Observations:
1. "This chapter presents how single-subject designs can be used to systematically test the effectiveness of a particular intervention" (Grinnell 344). Establishing the use of a particular way to do research helps narrow focus so there is not to much information at once.
2. "The purpose of monitoring is to systematically track a client's progress over time" (Grinnell 357). Gaining lots of information for a long period of time is a good way to reduce error. It also lets us see the effectiveness of a possible solution to an issue in action.
3."Because single-subject designs are often practice based, they may be easier to mitigate distrust of the researcher" (Grinnell 369). This mitigation would be a huge help for almost any experiment or test.
Question: Can you have to large of a sample size?
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