Statistical Analysis - Loudoun County Public Schools



SRP # 6: Final Materials & Procedures / Statistical Analysis PlanName: Mid-Term 2014- Blessing ISRBlock: Date: Final Experimental Design / Statistical Analysis PlanDirections: You can do this on the SRP Paper template described in SRP #7. Be sure that all suggestions from your teacher/peers have been completed and that you have followed the guidelines below. In addition to making these final edits, please also include a procedure for how you will statistically analyze your data/results. See guidelines below in # 3. Helpful hints and tips on statistical analysis are provided.MaterialS: your materials list should be in the following format and should include all of the items listed below.do not number itemssize and number of each item listedspecific names and/or scientific names includedall measurements in metric unitsheading capitalized, centered, underlined, 10 or 12 fontall words spelled correctlyPROCEDURES: your procedure should be written in the following format and should include all of the items listed below.numbered stepseach action written as a different step (ex. 1. Fill 100 mL beaker with 25 mL of H2O2. 2. Measure 25 mL of catalase into a 50 mL graduated cylinder. 3. Pour the 25 mL of H2O2 into the beaker.)Do not write in paragraph formWrite your procedure so that another student or researcher could reproduce your experiment exactlyProcedure steps include all equipment used in the experimental set-upProcedure steps include an exact description of how measurements will be takenDo not write your procedure in 1st person (no I, We, You)Include enough repeated trials in your procedure, this will depend on your particular experiment, more is better. (15 trials is the bare minimum)Identify a controlDescribe constants and plan for uniform conditions for all trialsHeading capitalized, centered, underlined, 12 fontAll words spelled correctlyStatistical Analysis Plan: You need to include in your procedures a section that includes the following:Type(s) of data you are collecting (Qualitative OR Quantitative OR Both)Level of Measurement (nominal, ordinal, ratio, interval)Statistical Tests you plan to use (t-test, chi-square, Pearson R correlation, ANOVA, etc.)Statistical Analysis When you are planning your procedure you need to think about what statistical analysis test (s) you plan on doing with your data. You need to be certain you are collecting appropriate data that will satisfy a statistical analysis of your experimental results. Without statistical analysis of your data, your results are not scientifically sound or valid and you cannot support or refute your hypothesis with a level of significance. Types of Data/Level of MeasurementYou need to consider the type(s) of data you have in your experiment. To determine the type, see below.Qualitative data are placed into categories that may be discrete categories represented by word or number labels. It can also be measurements made with a nonstandard scale with unequal intervals. Levels of MeasurementNOMINAL DATAobjects are placed into categories that cannot be ranked (male/female, yes/no, or brown, black, red hair) ORDINAL DATAobjects are placed into categories that can be ranked (Moh’s hardness scale or animal activity ranked 1- 5)Quantitative data consists of numbers representing counts or measurements made using a scale with equal intervals.Levels of MeasurementRATIO DATAdata collected using a scale with equal intervals and with an absolute zero (temp, velocity)INTERVAL DATAusing a scale with equal intervals but no absolute zero (temp change, pH)Statistical Tests The t-test (or Analysis of Variance): An analysis of variance is used when you have two or more groups and you want to compare measurements of each group. The t-test analyzes the relationship between two groups. This is used with quantitative data.The Chi-square test: This test is used when you have counts that can be placed into yes or no categories, or other simple categories such as quadrants. This is used with qualitative data.The Pearson R Correlation: The Pearson R Correlation allows you to test how the values of one event or object relates to the values of another event or object. This is used with quantitative data.4. ANOVA: An ANOVA is an analysis of testing the equality of three or more Population means of analyzing sample variances. This is used with quantitative data. Note: there are more types of statistical tests that may work better for your data collection. See your science teacher or a math teacher that teaches statistics for help.QuantitativeQualitativeInferential Statisticst-Test (t) Pearson R CorrelationANOVAChi- Square (x2)SRP # 6: Final Materials & Procedures / Statistical Analysis PlanName: Mid-Term 2014- Blessing ISRBlock: Date: Final Materials & Procedures / Statistical Analysis PlanRubricOpen up your continuous SRP Paper Document and make final edits to your materials page and procedures page. Be sure that all suggestions from your teacher/peers have been completed and that you have followed the guidelines on page 49. In addition to making these final edits, please also include a procedure for how you will statistically analyze your data/results. Helpful hints and tips on statistical analysis are located on page 50 and in Appendix B.PossiblePoints60Self Review GradePeer ReviewGradeTeacher ReviewGradeMATERIALS:10 pts.(each bullet point is worth 2 pts.)-------------------------Items not numberedSize and number of each items listedSpecific names and/or scientific names usedMeasurements in Metric UnitsCorrect Spelling/GrammarPROCEDURES:20 pts.(each bullet point is worth 2 pts.)-------------------------Numbered steps ; Each action a different stepCan be reproducedSpecific equipment listed in stepsDescription of measurement/metric unitsWritten in 3rd Person (no I, we, my, you)Repeated trials (minimum 15 trials per variable/condition)Control group included and describedConstants and uniform conditions describedCorrect Spelling/GrammarMade all edits to SRP #4 suggested by teacherStatistical Analysis Plan:Type(s) of data (qualitative, quantitative, both)Level of Measurement (nominal, ordinal, ratio, interval)Statistical Tests you plan to use (t-test, chi-square, Pearson R correlation, ANOVA, etc.)**Put this in the procedures, at the end.30 pts.(each bullet point is worth 10 pts.)Total number of points60SRP # 7: SRP Paper Template Name: Mid-Term 2014- Blessing ISRBlock: Date: SRP Paper Template Assignment DescriptionDirections: Go to my website under the Mid-Term section and download and save the SRP Paper Document. You must fill in all parts of this paper document except for the Results and Conclusions sections. Be sure that all suggestions from your teacher/peers have been completed and that you have followed the guidelines within the template. Use past SRP assignments that you have returned from your teacher to fill in the information for each of these sections.Pay close attention to the Table of Contents page and make sure your page numbers are correct. If you have made any major changes to your title, statement of the problem, hypothesis, literature review, materials, procedures or references, make sure those major changes are reflected when you turn in this version of your SRP Paper. Title Page Table of Contents Statement of the Problem Hypothesis Literature Review Materials Procedures Results (this section will be empty until experimentation is complete) Conclusions (this section will be empty until experimentation is complete) ReferencesPaper Format It is already formatted to you according to the guidelines on my website. DO NOT CHANGE THE FORMAT. Here are a few reminders:1. Typed on 8 ? x 11 paper 2. Font size should be 12 Times New Roman 3. Margins = 1" on all sides. 4. Page numbers go in the upper right hand corner (1" from the top). No page number on the first page (first page is considered to be the Title Page, so your table of contents page should be page 2).5. Center and underline headings [ Ex: STATEMENT OF THE PROBLEM ]. Triple space after headings. 6. Each section should start on a new page. BE SURE TO UPDATE YOUR PAGE NUMBERS IN YOUR TOC.Contents of Paper Title PageTitle is placed 3 inches from the top and is written in ALL CAPS. If it is more than one line it should be double-spaced and the first line should be the longest. (This formatting has already been set up in the electronic template.) Most titles should start with the words "The Relationship Between… " or “The Effect/Affect of…….”Two inches below the title the word "by" is centered and then:Your NameIndependent Science ResearchBlessingCurrent DateTable of Contentsincludes all your headings and .........page number does not include ABSTRACT use periods between item and page number (This formatting has already been set up in the template- DO NOT CHANGE IT.) Example - Statement of the Problem...............................….......................................3 Hypothesis…………………………….....................................................4 Literature Review………………………………………………………..5Materials…………………………………………………………………9Procedures………………………………………………………………10Results…………………………………………………………………...13Conclusion………………………………………………………………15References……………………………………………………………….17Statement of the Problem Make sure this is in the form of a question.HypothesisState your educated guess (your prediction) as to the outcome of the experiment (No "I", " We") If/Then statement or prediction.LITERATURE REVIEWMake all revisions indicated by your teacher /peers on your first draft, all previous papers,and grade sheets. Copy and paste your most recent (almost final!) SRP #3.MaterialsList all the materials used. Example - 3 500 ml glass beakers (Use SRP #4 AND #6)Procedures List the steps to conduct your experiment so that another person could duplicate it.The steps must be numbered. (Use SRP #4 AND #6)Results This section will be blank until you actually have results. This section is to also include all tables, charts, graphs (figures), and statistical analysis.ConclusionsThis section will be blank until you have analyzed your results and performed statistical analysis. You should be referring back to your Literature Review in your conclusion.referencesAll sources used and cited within the literature review section should be included in an alphabetical listing. In your final paper you must have AT LEAST 10 VALID SOURCES.SRP # 7: SRP Paper Template Name: Mid-Term 2014- Blessing ISRBlock: Date: SRP Paper Template RubricOpen up your continuous SRP Paper Document and make final edits to all sections except for the Results and Conclusions pages. Be sure that all suggestions from your teacher/peers have been completed and that you have followed the guidelines given.Pay close attention to the Table of Contents page and make sure your page numbers are correct. If you have made any major changes to anything after receiving other SRP assignments from your teacher, make those changes in the paper template.PossiblePoints100Self Review GradeTeacher ReviewGradeTeacher CommentsTitle pageGuidelines followed5TABLE OF CONTENTSall headings and page numbers listedpage numbers correct 20STATEMENT OF THE PROBLEMall pervious revisions completed5HYPOTHESISall pervious revisions completed10LITERATURE REVIEW all pervious revisions completed15MATERIALSall pervious revisions completed10PROCEDURESall pervious revisions completed10RESULTSpage will be blank except for heading3CONCLUSIONSpage will be blank except for heading2REFERENCES10 sourcesalphabetical by author’s last namecorrect APA style20Total number of points100 ................
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