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regression-analysis

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Journal Articles
The American Biology Teacher. 2020; 824247–255 doi: https://doi.org/10.1525/abt.2020.82.4.247
Published: 01 April 2020
... Homework: Calculate site-level means, create scatterplots of leaf characteristics and MAT. Handling and visualizing data swirl course Outside of lab: Students write methods section of research paper. 11 Data Analysis II – Simple Linear Regression Data analysis II handout, simple linear regression...
Journal Articles
The American Biology Teacher. 2020; 825308–314 doi: https://doi.org/10.1525/abt.2020.82.5.308
Published: 01 May 2020
... collectively indicate a slight regression toward the mean; that is, students' makeup scores were closer to average than their regular-exam scores, in comparison to their peers. Figure 1. Number of makeup exams with performance, in relation to that of peers, that improved (light gray) or declined (dark...
Journal Articles
The American Biology Teacher. 2020; 825289–294 doi: https://doi.org/10.1525/abt.2020.82.5.289
Published: 01 May 2020
... … … distribution of one categorical variable. χ 2 goodness-of-fit … relationship between variables of same type. χ 2 test of association Regression/correlation … difference between two groups. Wilcoxon Two-sample t -test … differences between multiple groups. Kruskal-Wallis Analysis of...
Includes: Supplementary data
Journal Articles
The American Biology Teacher. 2020; 824210–215 doi: https://doi.org/10.1525/abt.2020.82.4.210
Published: 01 April 2020
... linear regression analysis. Figure 3. Student learning outcomes (± SE), based on the results of pretests and posttests completed by the students who participated in the game activity ( n = 92). The asterisk over the horizontal line indicates significant differences in paired t -test ( P...
Journal Articles
The American Biology Teacher. 2019; 816449–451 doi: https://doi.org/10.1525/abt.2019.81.6.449
Published: 01 August 2019
... added to the database, students were encouraged to write the methods sections of their lab report and begin analyzing the data. Data analysis required students to consider the best statistical comparison to use for their dataset. Our biology majors have been exposed to linear regression analysis...
Journal Articles
The American Biology Teacher. 2019; 816403–409 doi: https://doi.org/10.1525/abt.2019.81.6.403
Published: 01 August 2019
... and Objectives 0.655 −0.211 *0.855 Assessment Activities 0.473 −0.293 0.086 Schedule 0.05 *0.713 0.135 Overall Learning Environment 0.233 −0.167 0.514 Table 2. Summary of hierarchical regression analysis for variables predicting total syllabus rubric score...
Journal Articles
The American Biology Teacher. 2019; 81298–109 doi: https://doi.org/10.1525/abt.2019.81.2.98
Published: 01 February 2019
... and Newman, 2011 (1). No significant differences in student performance were found between treatment groups in posttesting as determined through t-test and multiple regression analysis. Multiple regression analysis of pre-assessment responses revealed ethnicity to be a significant predictor of...
Includes: Supplementary data
Journal Articles
The American Biology Teacher. 2019; 81120–26 doi: https://doi.org/10.1525/abt.2019.81.1.20
Published: 01 January 2019
..., biomolecules, cells, the central dogma of biology, evolution, genetics, and biotechnology. An ordinary least squares (OLS) regression analysis was conducted to determine which motivation scores, if any, predicted overall student performance in the class. Each student's final course percentage was used as a...
Includes: Supplementary data
Journal Articles
The American Biology Teacher. 2018; 808561–569 doi: https://doi.org/10.1525/abt.2018.80.8.561
Published: 01 October 2018
... between (log) body size and the (log) length of three different traits (tibia, genitalia, and horns) in male dung beetles ( Onthophagus gazella ). Each symbol depicts one individual. Regression line indicates different slopes and thus different static allometric relationships. Genital size changes very...
Journal Articles
The American Biology Teacher. 2018; 80153–55 doi: https://doi.org/10.1525/abt.2018.80.1.53
Published: 01 January 2018
... natural history. Finally, it gives students an opportunity to explore the basics of hypothesis formation and data analysis, which are critical skills for today's STEM students. Following data collection, I introduce students to the concept of linear and non-linear regression and looking for...
Journal Articles
The American Biology Teacher. 2017; 799720–727 doi: https://doi.org/10.1525/abt.2017.79.9.720
Published: 01 November 2017
... ; regression analysis: p < 0.00001). Additionally, students who passed the BPT with a score greater than 50 percent were much more likely to earn an A or a B in BI 211, and much less likely to fail or drop the course ( Figure 1B ; X 2 0.05,5 = 20.7, p < 0.001). Although we accepted scores of 51...
Journal Articles
The American Biology Teacher. 2017; 79141–48 doi: https://doi.org/10.1525/abt.2017.79.1.41
Published: 01 January 2017
... shown in Figure 7 . A regression analysis of these example data shows that there is no significant relationship between relative size and relative pot time. In other words, owners spent more time in the pot than intruders, no matter how much larger or smaller they were in comparison to the intruders (R...
Journal Articles
The American Biology Teacher. 2017; 792112–119 doi: https://doi.org/10.1525/abt.2017.79.2.112
Published: 01 February 2017
... method for surveying students’ readiness to study evolution . American Biology Teacher , 75 ( 2 ), 102 – 105 . Taylor, J. M. , Davidson, R. M. , & Strong, M. ( 2014 ). Drug-resistant tuberculosis: A genetic analysis using online bioinformatics tools . American Biology Teacher , 76 ( 6...
Journal Articles
The American Biology Teacher. 2017; 79123–27 doi: https://doi.org/10.1525/abt.2017.79.1.23
Published: 01 January 2017
... the fall quarter of 2014; d = 0.34 in the winter quarter of 2015). The biomentors group significantly outscored the control group even when the effects of gender, parent income level, parent education level, total SAT score, and cumulative GPA were statistically controlled using a stepwise regression...
Journal Articles
The American Biology Teacher. 2016; 787591–598 doi: https://doi.org/10.1525/abt.2016.78.7.591
Published: 01 September 2016
... interpret data, and communicate their findings to others. Question What Do I Already Know? What Do I Need to Know? (Hypothesis Development) What Do I Do to Learn What I Need to Know? (Methods) What Do I Now Know? (Data Collection) What Do I Now Know? (Data Analysis) What Do I Now Need to...
Journal Articles
The American Biology Teacher. 2016; 786448–455 doi: https://doi.org/10.1525/abt.2016.78.6.448
Published: 01 August 2016
... and dependent variables are categorical or numerical, and (4) interpreting and presenting the results in a graphical form. The three main statistical tests discussed here are t-test, analysis of variance, and linear regression (Supplemental Material Appendix 3). This presentation is the product of a...
Includes: Supplementary data
Journal Articles
The American Biology Teacher. 2016; 785396–403 doi: https://doi.org/10.1525/abt.2016.78.5.396
Published: 01 May 2016
... based on their analysis. The text that accompanies each module (see “Web Link” below) includes questions to guide students through the conclusion process. Joinpoint graphs and regressions from Module 1 will illustrate that initial populations with more females can both grow faster and larger. This can...
Journal Articles
The American Biology Teacher. 2016; 785380–384 doi: https://doi.org/10.1525/abt.2016.78.5.380
Published: 01 May 2016
... calibration points in molecular clock studies: an example using turtles . American Naturalist , 165 , 137 – 146 . Platnick, N.I. & Cameron, H.D. ( 1977 ). Cladistic methods in textual, linguistic, and phylogenetic analysis . Systematic Zoology , 26 , 380 – 385 . Schuh, R.T...
Journal Articles
The American Biology Teacher. 2016; 78135–42 doi: https://doi.org/10.1525/abt.2016.78.1.35
Published: 01 January 2016
... (communicated verbally, symbolically, or visually). Concrete models can be simplified representations of a system ( a ) or working-scale prototypes ( b ). Mathematical models can be descriptive or predictive, and empirical or mechanistic. A descriptive model, such as a regression line, depicts a pattern of...
Journal Articles
The American Biology Teacher. 2015; 779703–706 doi: https://doi.org/10.1525/abt.2015.77.9.10
Published: 01 November 2015
... hypothesis, but only ask questions to guide students to refine their own ideas. No two projects in any semester can be the same. I occasionally must suggest a topic for a student, who then develops a question and hypothesis with my help. Benefits of including quantitative analysis in biology courses have...