THINKING LIKE A SCIENTIST: COLLEGIATE SCIENCE DATA ANALYSIS PROCESS SKILLS Colleen McLinn, Gigi Saunders, Rudi Thompson, Linda Vick NORTH PARK UNIVERSITY North Park University serves a diverse student population. Our Biology major allows great freedom in the selection and sequencing of courses. We have a need for some means of establishing a coherent path for the development of fundamental skills that will provide a foundation for scientific engagement and thinking. THE NEED Prepare students to develop advanced skills Enhance student engagement through participatory experiences Provide opportunities for assessment Improve student retention Development of skills desired by employers THE TASK Create a sequenced program of experiences to introduce and/or reinforce basic knowledge and tools that will enable students to develop the skills that will equip them to participate effectively as scientists and prepare them for employment. Engaging Students in - JOB Employers Seeking Communication skills Analytical Research skills Computer/technical literacy Flexibility/adaptability/managin g multiple priorities Interpersonal abilities Leadership management skills Multiculturally aware Planning/organizing Problem solving/ reasoning/creativity Teamwork 3 Million Unfilled Jobs Contract Research Organizations: product development, formulation and manufacturing, clinical trial management, safety, preclinical toxicology, clinical lab, data management, biostatistics, medical writing Clinical, Medical, micro, life sciences lab techs Technical Service Rep Scientific Company Sales Rep Graduate School Professional School OUR PROCESS A. Identify the attributes desired by employers B. Identify skills and sub-skills that build these attributes C. Establish a customizable sequence for building these skills D. Identify experiences to present/practice skills and skill sets E. Incorporate faculty buy-in BACKWARD DESIGN A. Identify attributes desired by employers DESIRED ATTRIBUTES •Communication skills (listening, verbal, written) •Analytical research skills -assess a situation -seek multiple perspectives -gather more information if necessary -identify key issues that need to be addressed •Computer/technical literacy -computer – literate performance with extensive software proficiency covering a wide variety of applications. •Flexibility/adaptability/managing multiple priorities •Planning/organizing •Problem solving/reasoning/creativity •Teamwork •Interpersonal abilities •Leadership management skills •Multicultural aware National Association of Colleges and Employers (NACE) STEP TWO B. Identify skills and sub-skills that develop attributes ANALYTICAL RESEARCH SKILLS Assess a situation What do I know/want/need Descriptive statistics (central tendency, variability, etc.) Comparison of two data sets Identify variables: independent and dependent Identify constraints or boundaries of a situation Seek multiple perspectives Gather more information if necessary Identify key issues that need to be addressed ANALYTICAL RESEARCH SKILLS Assess Seek a situation multiple perspectives Experimental/null/alternate hypothesis Multiple data sets Source evaluation Gather more information if necessary Identify key issues that need to be addressed ANALYTICAL RESEARCH SKILLS Assess a situation Seek multiple perspectives Gather more information if necessary Quantitative/qualitative data Subjective/objective data Discrete/continuous data When is enough, enough? What is the value of the info? Identify key issues that need to be addressed ANALYTICAL RESEARCH SKILLS Assess a situation Seek multiple perspectives Gather more information if necessary Identify key issues that need to be addressed Problem sets Brainstorming Implications Applications PROBLEM SOLVING/REASONING/CREATIVITY Problem solving Tests of correlation and/or causation Hypothesis formation Experimental design Thinking outside the box COMPUTER/TECHNICAL LITERACY Spreadsheets Graphic analysis Report functions Locating and mining data FLEXIBILITY/ADAPTABILITY Persistence MANAGING MULTIPLE PRIORITIES Multitasking Leadership Prioritizing PLANNING/ORGANIZING How to search How to test Teamwork COMMUNICATION Organize and construct tables and charts Lab report writing Presentation/Discussion Peer review C. CUSTOMIZABLE SEQUENCE Modules Identifying data: •Assessment of situation [what do I know, what do I want to discover, what do I need to know] •Data: subjective/ objective; quantitative/ qualitative; precision, accuracy, reliability •Correlation and causation •Hypothesis formulation Using Data: •Descriptive statistics •Comparison of two data sets Evaluating Data: •Significance •Sample size MODULES •Visualizing Data: •Tables •Graphs: styles, formatting •Graphing skills •Finding Data: •Searching databases •Evaluating data •How to test D. IDENTIFY EXPERIENCES Identifying data: Using Data: •Comparison of Data Sets Evaluating Data: D. IDENTIFY EXPERIENCES Example Lessons Visualizing data: Finding Data: COMPARISON OF DATA SETS Pedagogical objectives Tools Interactive Group Lesson Inquiry-based Individual Challenge Assessment Rubric Pedagogical objectives • • Utilize descriptive statistics to explain values in a sample population compare two value sets to identify separation or overlap of the data sets Tools Interactive Group Lesson Inquiry-based Individual Challenge Assessment Rubric Pedagogical objectives Tools • Database(s) • BIRDD Excel Interactive Group Lesson(s) Inquiry-based Individual Challenge Assessment Rubric Pedagogical objectives Tools Interactive Group Lesson • Matrix Inquiry-based Individual Challenge Assessment Rubric Analyzing Data Like a Scientist – Resources to develop skills INTERACTIVE GROUP LESSON MATRIX Modules Tools Data concepts: subjective/obj ective quantity, quality, reliability Identifying and operationalizin g variables Descriptive Tools: Statistics and Phylogenetic description Correlation and Causation Compariso n of Two Data Sets Introduc-ory concept Gapminder Investigative Cases: As the Stomach Turns Investigative Cases: A Multidimensional Study of HIV Analysis of Graphical Representat ion of Data Databas e Investiga tion XX XX XX XX Spreadsheets database, graphics and statistics packages studentgenerated data Analysis of database Esteem Collection: TwoSpecies Model Introduction to models Esteem Collection: Island Biogeography Scale It: Cholera Next Door Scale it: Forest Fever Creating models to explain data and make predictions to test hypotheses XX Arcview GIS BioQUEST Library Online: BIRDD: Beagle Investigations Return with Darwinian Data BioQUEST Library Online: Data Collection and Organization Visual Represe ntation of Data Analysis of studentgenerated data Model potential modes of disease transmission during an epidemic. Diverse types of data, evaluate quality of data sets XX XX INTERACTIVE GROUP LESSON MATRIX Problem Spaces: HIV DNA sequence comparison Problem Spaces: Desiccation Tolerance DNA sequence comparison Problem Spaces: Identifying biocontrol agents through applied systematics (Blunder Down Under) Modeling Spatial Distribution Phylogenetic tools Pharmokinetics Models Lab 2012 Association vs. Causation Using Geo-referenced Animal Observations for Inquiry XX XX Investigation Diverse types of data, evaluate quality of data sets Determinatio n of variables from observations of bird song XX Pedagogical objectives Tools Interactive Group Lesson • Matrix Inquiry-based Performance Assessment • Doing Science Assessment Rubric Inquiry-based Performance Assessment Challenge: Apply your skills in describing and comparing data sets by using them to compare morphometric data of finches from the Galapagos Islands. These islands and the finches that are endemic to the islands have provided a classic example of adaptive radiation. The data that you will use has been collected from subpopulations of birds on several of the islands. Your task is to compare these subpopulations: are the subpopulations on individual islands distinctive? 1. 2. 3. 4. 5. 6. 7. Go to the BIRDD site http://bioquest.org/bird/index.php Open Islands and habitats and note the general location and layout of the islands. Open Morphological Data. Familiarize yourself with the morphometric measurements that have been collected. Why might these measurements have been chosen? Scan the tables of data. What information have you been given? Go to http://people.rit.edu/rhrsbi/galapagospages/Darwinfinch.html to see images of the 13 species of Galapagos finches. Are all of these species included in this data set? Choose a species represented on two of the three islands that are listed separately [Genovesa, Santa Cruz, and Island X]. Are the populations on either of the islands significantly different from each other in any of the measurements? Are either of the populations significantly different from the “all islands” values? Construct an Excel spreadsheet to use in organizing and calculating your data. You may also wish to construct charts or graphs to visually present your data. Explain how you have compared the data sets, and how you have reached your conclusions. Sheet1 STUDENT GENERATED DATA A 1 2 3 4 5 6 7 8 B C D E F G H I J genovesa body length mean sd n se 9 10 11 12 13 14 15 island x mean sd n se body length 16 17 18 19 20 21 22 23 all islands mean sd n se body length 24 wing length 116.4 4.4 9 1.47 tail length 61.7 2.2 9 0.73 wing length 117.6 3 5 1.34 tail length 62.2 2 119 0.18 wing length 116.9 5.5 180 0.41 body length beak height 40.1 1.7 9 0.57 beak height 39.3 1.4 6 0.57 tail length 62 2.3 1552 0.06 wing length beak width 8.4 0.3 9 0.10 beak height tail length lower beak length upper beak length nostril-upper tarsus length 7.6 14.2 9.4 0.5 0.8 0.5 9 9 9 0.17 0.27 0.17 17.9 0.8 9 0.27 6.5 0.2 6 0.08 lower beak length upper beak length nostril-upper tarsus length 6.3 12.4 8.4 0.3 0.5 0.4 6 102 122 0.12 0.05 0.04 18.8 0.4 6 0.16 6.7 0.3 188 0.02 lower beak length upper beak length nostril-upper tarsus length 6.7 12.5 8.5 0.5 0.7 0.5 186 1452 1561 0.04 0.02 0.01 18.8 0.8 189 0.06 beak width 8.1 0.4 113 0.04 39.1 3 187 0.22 6.6 0.3 9 0.10 beak width 8.1 0.5 1355 0.01 beak height beak width lower beak length upper beak length nostril-upper tarsus length 25 genovesa 26 27 plus2se mean 119.3 116.4 63.2 61.7 41.2 40.1 8.6 8.4 6.8 6.6 7.9 7.6 14.7 14.2 9.7 9.4 18.4 17.9 28 29 minus2se 113.5 60.2 39.0 8.2 6.4 7.3 13.7 9.1 17.4 30 1sland x 31 32 plus2se mean 120.3 117.6 62.6 62.2 40.4 39.3 8.2 8.1 6.7 6.5 6.5 6.3 12.5 12.4 8.5 8.4 19.1 18.8 33 34 minus2se 114.9 61.8 38.2 8.0 6.3 6.1 12.3 8.3 18.5 35 all islands 36 37 plus2se mean 117.7 116.9 62.1 62 39.5 39.1 8.1 8.1 6.7 6.7 6.8 6.7 12.5 12.5 8.5 8.5 18.9 18.8 38 minus2se 116.1 61.9 38.7 8.1 6.7 6.6 12.5 8.5 18.7 Pedagogical objectives Tools Interactive Group Lesson Inquiry-based Individual Challenge Assessment Rubric FINCHES ASSESSMENT RUBRIC Criteria • Select an appropriate dataset: identify a species found on at least two islands (1.1.5, 2.1, 3.4, 6.2) • Properly set up spreadsheet from data provided (1.14, 2.4, 3.1, 7.1) • Calculate standard error for each trait and population (1.1.2, 3.1) • Calculate mean +/- 2 standard errors for each trait and population (1.1.2, 3.1) • Compare the three populations for each of the nine morphometric traits (either numerically or with graphs) (1.1.3, 3.2, 3.3, 3.4, 7.1) • Identify where there is no overlap between mean +/- SE’s and recognize what that means (1.1.3, 3.2) • Between island populations • Between the island populations and species summary data • Write explanatory paragraph (how compared the datasets and reached conclusions) • Interpret the data or graphs, describe what the data told them, describe how they got their answer (3.2, 7.2) • Interpret what the observed patterns mean at an evolutionary/population level and hypothesize what might have caused those differences (1.3.5, 1.4.3, 2.3, 7.2) Levels: Beginning (0-3) Developing (4-7) Proficient (8-10) E. ENCOURAGE FACULTY BUY-IN Flexibility Independent modules Clear process-related objectives Ease of use Value for retention Value for assessment Value for student placement WHERE DO WE GO FROM HERE? 1. 2. 3. 4. 5. Continue to locate/ develop experiences that can be incorporated into the program Develop an assessment strategy Test the elements of the program Use science! Seek funding to support further development of program