Go to Help ► Books ► Fitting Linear Models. In summary, recruitment was an emergent property based on competent supply and demand decisions made face-to-face inside the nest rather than on the trail or at the food site.This type of analysis is called an analysis of covariance (ANCOVA), and examples are available in the JMP ® Fitting Linear Models book. Additional opportunities to learn more about how to integrate the techniques outlined in FDA regulations and ICH guidelines into your stability program. How built-in features in JMP software specifically designed for stability testing simplify regulatory compliance. Chapter 18 Analysis of Covariance - ANCOVA Contents 18.1 18.2 18.3 18.4 18.5 18.6 18.7. How an analysis of covariance (ANCOVA) model can be employed to determine poolability of data from different batches. In turn, nestmates assessed the food sample with antennae, then responded to or resisted recruitment based on the quality of food advertised, their employment status and their level of hunger. View Notes - JMP-part019 from STAT 340 at Simon Fraser University. Scouts laid incoming trails, waggled their heads, increased walking tempo, stroked nestmates with their antennae, advertised with a brief food display, and led groups of nestmates to the food site by laying outgoing trails. Originally the word was adopted in the 1940s to connote a variable of quantitative nature (e.g., age, IQ) in ANCOVA, replacing the phrase concomitant variable by R. Throughout the recruitment process, scouts employed six discrete behaviors to inform nestmates of the location and quality of a food site. Detailed behavioral data on a total of 120 scouts (10 scouts per experimental group) and ∼1,000 nestmates (∼90 nestmates per experimental group) were transcribed from the videotapes using standard play and frame-by-frame techniques. In sum, IAT 802 is an introduction to experimental design and research methodologies where quantitative approaches are. In the next lesson, we will generalize the ANCOVA model to include the quadratic and cubic effects of the covariate as well. The overarching goal of this course is to help you develop the knowledge & skills essential for conducting proper scientific and quantitative research, as well as critically analyzing, discussing, and communicating it. Behavioral interactions between scouts and nestmates in each group were videotaped at 10× magnification for 20 min. In this lesson, we will address the classic case of ANCOVA where the ANOVA model is extended to include the linear effect of a continuous variable, known as the covariate. This is highlighted when comparing the values of the unadjusted means and adjusted means from the Descriptive Statistics and Estimates tables respectively. After a 48-h period of food deprivation, experimental groups were exposed to one of three concentrations of sugar water. In a two-way ANCOVA analysis, the covariate is included to provide a better assessment of the differences between the groups of the two independent variables in terms of the dependent variable. Each experimental group was placed in a shallow, artificial nest with a glass cover. Twelve experimental groups composed of 100 fire ant workers and 50 fire ant larvae were established (three experimental groups per colony × four stock colonies). In this paper, I report on the interactions between scouts and nestmates that result in a graded recruitment response to graded food quality in the fire ant, Solenopsis invicta. The process by which ant scouts move a group of nestmates toward a newly discovered food site is called recruitment.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |