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Chapter 5 - Is it true?

by: KUMIKO Notetaker

Chapter 5 - Is it true? G101

KUMIKO Notetaker
Cognitive Processes and Problem Solving
Rumi Sastro

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Hi guys! Hopefully my detailed note of lesson 5 is helpful for you!
Cognitive Processes and Problem Solving
Rumi Sastro
Class Notes
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This 2 page Class Notes was uploaded by KUMIKO Notetaker on Friday October 2, 2015. The Class Notes belongs to G101 at Republic Polytechnic taught by Rumi Sastro in Summer 2015. Since its upload, it has received 572 views. For similar materials see Cognitive Processes and Problem Solving in Education and Teacher Studies at Republic Polytechnic.

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Date Created: 10/02/15
ghapter 5 Is it true 1 Analysing your data By now you should have collected the data of your testsurveyexperiment The next step is to think about what you need to do with them to make a meaningful interpretation of the claim that you are investigating 1 Quality of your data Before you make a conclusion on the claim that you are investigating using the average or mean value that you have determined it is important for you to be aware that this mean value does come with an quoterrorquot due to the quality of the data you collected Because of that you cannot just make a conclusion on the claim you are investigating based on the mean value you have determined alone 1 Making the right deduction What affects the quality of your data 0 Sample size 0 Selection of samples 0 Problems with test method 0 Not taking into account other external factors Supporting or Refuting Claim Reputable journal publications Reputable online resources or forums De nitions 0 Mean Average 0 Standard Error A measure of the statistical accuracy of an estimate equal to the standard deviation of the theoretical distribution of a large population of such estimates 0 Median Denoting or relating to a value or quantity lying at the midpoint of a frequency distribution of observed values or quantities Mode The value that occurs most frequently in a given set of data 0 Standard Deviation A quantity calculated to indicate the extent of deviation for a group as a whole 0 Sample Variance how far a set of numbers is spread out Kurtosis the sharpness of the peak of a frequencydistribution curve Skewness the asymmetry of the probability distribution of a realvalued random variable about its mean Range the area of variation between upper and lower limits on a particular scale Practice Questions 1 Suppose you are investigating whether residents in village A or B are more prone to getting cancer You have collected a set of data which shows that 80 out of the 2000 residents in village A suffers from cancer while in village B 300 out of the 20000 residents suffers from cancer Which village would you conclude that the residents are more prone to getting cancer Explain how you reach your conclusion 2 Suppose your test results lead you to conclude that quotIn the test I conducted I cannot conclude that women can multitask better than menquot Based on this conclusion is it correct to make the following two statements Statement 1 quotSince I cannot conclude from my test that women can multitask better than men it therefore means that men and women can multitask equally wellquot Statement 2 quotSince I cannot conclude from my test that women can multitask better than men it therefore means that men can multitask better than womenquot Explain why you think statement 1 and 2 is correct or wrong In a study to assess how well a student perform in an exam one group of students group A and another group of students group B were asked to attempt questions on three different papers Paper 1 consist of questions on English Paper 2 consist of questions on mathematics Paper 3 consist of questions on English mathematics and geography The study revealed conclusively that students from group A generally scored higher marks in all three papers than students from group B Based on the results of this study the researcher claims that therefore if a test paper with questions on geography alone is given to the same group of students students from group A will score higher marks on this paper than students from group B Explain Clearly if such a claim is credible Learning Outcomes 1 2 3 Analyse available information andor resources to gather a coherent understanding of the problemissue Differentiate between facts and nonfactual claims Verify truth of claims with reference to accepted standards andor frameworks of measurement Organise information to facilitate a meaningful and accurate interpretation of the problem situationcontext Examine the contextual relevance of information methods of analysis and coherence of claims to embark on problem solving Evaluate the certainty of claims by examining their objectivity context and the availability of additional informationevidence or potential for ven cann Identify aws in the reasoning process Need answers Feel free to drop me an email 15043445 myrpedusg


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