Search results for "EXPERIMENTAL DESIGN"
showing 7 items of 37 documents
Quantifying cereal-reaping microwear on flint tools : an experimental approach
2016
International audience; From the earliest Neolithic in the Near East to the last Chalcolithic cultures in Western Europe, certain flint tools have been used as sickles to harvest cereals. Such harvesting tools can be identified through use-wear analyses, because cutting herbaceous plants produces specific wear-traces on the working edge of flint blades. The aim of this work is to explore harvesting-driven microwear variability and, more particularly, intensity of use as a governing factor. To achieve this objective, an experiment was designed consisting in the production of flint replicas to be used as harvesting tools, in various controlled conditions. A simple, cost-effective method of qu…
A Bayesian analysis of classical hypothesis testing
1980
The procedure of maximizing the missing information is applied to derive reference posterior probabilities for null hypotheses. The results shed further light on Lindley’s paradox and suggest that a Bayesian interpretation of classical hypothesis testing is possible by providing a one-to-one approximate relationship between significance levels and posterior probabilities.
Introducing evidence-based practices to manage problem behaviours at school: The behave application
2020
In the last years, an increasing awareness amongst educator and scholastic psychologists of the relevance to manage behavioural and emotional problems applying evidence-based approaches, and quasi-experimental designs is emerging. This request, however, must come to terms with certain barriers that persist in the school environment. The introduction of quantified methods to assess and monitor student's results, to evaluate the efficacy of the intervention, to understand the evolution of the single, is not part of the usual teacher's curriculum. The present paper describes the BEHAVE (Behavioral management model across Europe) application, a tool able to support the transition of all educato…
Navigation accuracy after automatic- and hybrid-surface registration in sinus and skull base surgery.
2016
Objective Computer-aided-surgery in ENT surgery is mainly used for sinus surgery but navigation accuracy still reaches its limits for skull base procedures. Knowledge of navigation accuracy in distinct anatomical regions is therefore mandatory. This study examined whether navigation accuracy can be improved in specific anatomical localizations by using hybrid registration technique. Study design Experimental phantom study. Setting Operating room. Subjects and methods The gold standard of screw registration was compared with automatic LED-mask-registration alone, and in combination with additional surface matching. 3D-printer-based skull models with individual fabricated silicone skin were u…
Online and face-to-face role-play simulations in promoting social work students’ argumentative problem-solving
2013
This paper reports on a teaching experiment in which social work students (n=38) practiced problem solving through argumentative tasks. A teaching experiment was carried out at a Mikkeli University of Applied Sciences in Finland in connection with a course concerning preventative work against alcohol- and drug abuse. This quasiexperimental study investigated whether role-play simulation conducted either online (15 students) or face-to-face (14 students) improved students’ problem solving on social issues. As a pre-test, the students wrote an essay after having watched a dramatization of problematic cases on elderly people’s use of alcohol. The students also attended lectures (30 x 45 min) o…
Variance component analysis to assess protein quantification in biomarker discovery. Application to MALDI-TOF mass spectrometry.
2017
International audience; Controlling the technological variability on an analytical chain is critical for biomarker discovery. The sources of technological variability should be modeled, which calls for specific experimental design, signal processing, and statistical analysis. Furthermore, with unbalanced data, the various components of variability cannot be estimated with the sequential or adjusted sums of squares of usual software programs. We propose a novel approach to variance component analysis with application to the matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) technology and use this approach for protein quantification by a classical signal processing algori…
Check in, check out! : käyttäytymisen tehostettua tukea lähikoulussa
2018
Finnish schools struggle with problem behaviour and need new interventions which are effective, acceptable, and can be implemented with high fidelity in general classrooms. The aim of this study was to examine the effects of Check in check out (CICO) support in decreasing the disruptive behaviours of general education primary school pupils. CICO can be regarded as an intensified level of support in Finnish schools, and its key features are brief morning and afternoon meetings with a CICO coach, the use of a Daily Report Card (DRC), regular positive feedback during the day by the classroom teacher, and parental involvement. The specific aims of the study were threefold: first, to pilot the i…