how to write an elab notebook ( with entry sample)3 (2)

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Southern Maine Community College *

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Biology

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Feb 20, 2024

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How to write a elab notebook Background information : This semester every student will complete a lab notebook. A lab notebook is considered a legal document, and as such must include specific information and follow specific formatting which is listed below. You will have a lab entry for each lab, keep a running Word.doc or pdf document, adding each lab as you go. The recommendation is that you write your entry for each lab the week that you conduct the lab, however you will submit the elab notebook only 2 or 3 times semester.. Each lab entry write up should include the following info ( see example of entry below): The first page of elab notebook be a table of contents with experiment name and page number. Number every page Date of experiment ( date you conducted lab) Title of experiment Rational (objective) of experiment: what is the experimental question(s) you are asking? Why is it important? What is your null hypothesis?What is your alternative hypothesis? Protocol ( methods): The goal of the protocol you include in your lab manual is to provide enough detail that someone else could replicate your work. For an elab notebook, you have three options for the protocol section;, the first option is the simplest, which is to simply refer to where the protocol is that you followed. For example refer to Bio 1 lab handout (include page numbers) posted on course portal, or if it was a virtual lab, refer to website that was provided in the lab handout. Second option, you can copy, cut and paste protocol in the protocol section. Third option; you can write the steps followed in your own words, using, enough detail that someone else could replicate your work. Results: written in clear table or figure format with number and basic title This includes any data tables, sketches and/or images from lab, and a couple of sentences regarding an overall summary of results. (eg. 37°C resulted in the highest rate of cellular respiration in yeast.”) Discussion/Interpretation : Why you think you got the results you got, or what you would have expected to get and why. The use of outside sources is encouraged. For these lab notebooks, typically you will be answering the questions at the end of the lab handout for your discussion section.
Sample E lab notebook January 27 2020 Title: Basic statistics χ²test on coin toss data Objective : To generate a simple data set ( coin toss) to run a χ² test on to determine if there is a significant difference between the number of heads: tails expected (1:1)and observed. Null hypothesis: There should be no difference between the experimental ( observed) data and the control ( expected)data. Alternative hypothesis: There should be a difference between the experimental and control data. (include what the difference is that you expect; eg Increase or decrease in results) Methods ; You may cut and paste from Bio 1 lab manual or write the steps following in enough detail that someone could replicate your work. Or, to simplify, refer to Brightspace link eg. “Methods: refer to the Week 1 Introduction lab included in the Bio 1 Lab Manual module posted on Brightspace for Bio 124-02 at SMCC”. For your independent study you will need to enter into lab notebook all steps followed. Results : Protocol 1. Responses to the questions asked in Protocol 1 for experiment 1 and 2, regarding experimental design, that are located in the Lab 1 handout Table 1.Number of times hand flipped coin lands on either heads or tails. N=100 HEADS TAILS 48 52 Table 2. Chi square calculation for coin toss data( table 1.) p<. 05, n=100, df =1
Heads tails Observed (O) 48 52 Expected(E) 50 50 Deviation (O-E) -2 2 Deviation ²(d²) 4 4 d²/E .08 .08 χ² = ∑ d²/E χ²= .16 1. Using p<. 05, and df =1 with a χ²= .16 and the critical value distribution table ( see lab manual) Summary statement: The coin toss data( Table 1.) is NOT significantly different than expected 1:1 heads to tails
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Discussion : respond to questions at end of lab handout