Sentences with phrase «controlled experimental designs»

Of the 36 intervention studies in 1997 — 1998, nine (25 %) were controlled experimental designs (five randomised controlled trials, four non-randomised controlled trials) and 27 were non-experimental designs (four cohort or longitudinal studies, one case — control study, 22 single - group designs).

Of the 31 intervention studies in 2001 — 2003, three were controlled experimental designs (randomised controlled trials) and 28 were non-experimental designs (15 longitudinal studies, two case — control studies, 11 single - group designs).

Of the nine intervention studies in 1987 — 1988, five were controlled experimental designs (two randomised controlled trials, three non-randomised controlled trials) and four were non-experimental designs (two single - group designs; two described only process variables or components of the intervention delivered rather than outcomes).

(*) Programs and practices listed here received support from at least three studies by independent evaluators and / or peer - reviewed publications, using controlled experimental designs and independent outcome measures.

«We used a highly controlled experimental design, to ensure that any benefits of mindfulness training were not likely explained by people believing it was a better treatment,» said co-author Dr Tom Freeman (Senior fellow of the Society for the Study of Addiction), who was part of the research team while based at UCL.

Specifically, the NIH defines scientific rigor as «the strict application of scientific method to ensure unbiased and well - controlled experimental design, methodology, analysis, interpretation, and reporting of results.»

Not exact matches

A well - designed experimental study isolates those variables that concern us, and contrasts them with a control condition that doesn't include those variables.

The strongest research methods for psychological studies are: qualitative findings versus quantitative; experimental rather than descriptive or correlational; controlled - experiment, meta - analysis, and observation designs over archival, case study, computational modeling, content analysis, field experiment, interview, neuroimaging, quasi experiment, self - report inventory, random sample survey, or twin study; and prospective (where subjects are recruited prior to the proposed independent effects being administered) and longitudinal (where subjects are studied at multiple time points) rather than retrospective or cross-section study.

A computer controlled the phone's transmissions in a double - blind experimental design, which meant that neither the test subject nor researchers knew whether the cell phone was transmitting or idle while EEG data were collected.

During the first few years she cut her teeth on experimental lab work and informational control and design as a robotic engineer, but what she really wanted to do was work directly on planetary missions.

Thus, if you really want to see the inclusion of another control in the experimental design, or if you still don't believe the conclusions based on the data, you will need to say so in your comments to the editor and the authors.

Whereas numerical calculations show that substantial control should be possible, an experimental design for this case is still pending.

The best experimental design is to go in between two natural controls, which is where our bloom was placed.

Developing an antibody and validating it is not different from doing an experiment correctly, and doing the right experimental design with the proper controls,» observes Polakiewicz.

To learn more about the field performance, durability, and decomposition properties of biofabric, the researchers designed experiments to compare four experimental spunbond, nonwoven biofabrics with two commercially available bioplastic mulch films and a bare soil control.

The experimental design draws from his recent research in the field of optomechanics, which Savona describes as «the art of conceiving systems in which light interacts, in highly controlled and highly tailored way, with a mechanical vibration of some sort.»

They are collecting data from their numerical modeling and experimental research to benefit wave energy technology with improved methodologies, strategic control systems design and testing practices for wave energy converters.

Off - target effects should be minimized by the experimental design: choose a good sgRNA with the fewest possible off - target effects, control the amount of Cas9 introduced into the cells, and limit the time that Cas9 is present in the cells.

The MMRRC is committed to upholding the highest standards of experimental design and quality control to optimize the reproducibility of research studies using mutant mice.

Two grants: $ 700,000 (3 years); $ 750,000 (3 years) «Computational Research & Development for Rapid Sequencing Nanotechnology» «Experimental Research & Development for Rapid Sequencing Nanotechnology» This group will develop computational modeling to guide the fabrication of a novel nanotechnology sequencing device, as well as design electronic control and detection experiments.

A range of research interests are possible within the themes of bioinspired robotics and medical device design; however, it is expected that mechanical design, robot control, biomechanical modeling of biological systems, mechanism design and kinematic analysis, device characterization and optimization, bioengineering as well as experimental / analytical mechanics will be key features of the research.

A European - built orbiter designed to seek out the source of methane on Mars slipped into orbit around the red planet Wednesday after a seven - month interplanetary journey, but mission control lost contact with an experimental landing probe just before touchdown.

In this review, we present a practical guide to help researchers design their first scRNA - seq studies, including introductory information on experimental hardware, protocol choice, quality control, data analysis and biological interpretation.

One taught social studies using the project - based units we designed (the experimental or PBL group), and the other taught social studies as they normally did (the control group).

Voucher Effects Researchers over the past decade have focused on evaluating voucher programs using experimental research designs called randomized control trials (RCTs).

And scholars will need to be careful not to make causal claims based on data sets that aren't subject to experimental designs; the sheer quantity of data can't make up for the lack of controls and random assignment.

Quantitative hypotheses, for instance, had to be «evaluated using experimental designs in which individuals, entities, programs, or activities are assigned to different conditions with appropriate controls to evaluate the effects of the condition of interest through random assignment experiments, or other designs to the extent such designs contain within - condition or across - condition controls.»

In contrast, ESSA defines four levels of «evidence - based» practices: «strong,» with at least one well - designed and well - implemented experimental study with a statistically significant, positive effect; «moderate,» with at least one well - designed and well - implemented quasi-experimental study such as a matched - comparison group; «promising,» with at least one well - designed and well - implemented correlational study with statistical controls for selection bias.

True experimental designs that compare treatment groups to untreated «control» groups can turn students into «guinea pigs,» which Linek considers unethical.

Strong — at least one well - designed and well - implemented experimental study (i.e., a randomized controlled trial).

The project design included four experimental middle schools, one control middle school, three experimental high schools, and one control high school.

Future research should seek additional control variables as well as use experimental and quasi-experimental designs to establish a causal relationship between dual enrollment participation and educational outcomes.

Schrum et al. (2005) reminded us that the U.S. Department of Education's gold standard for educational research involves randomized, experimental designs with treatment and control groups.

Despite the authors having experimental control over the study population, they chose to undertake an experimental design in which all dogs first received the control diet, followed by all dogs receiving the experimental diet.

ACE thinks that some of HLL's early studies were not conducted as well as they could have been, and that there were problems in some of the write - ups of those studies.262 For example, HLL conducted five studies with the same participant pool, which might have caused the results of some of those studies to be influenced by earlier experimental manipulations.263 Some studies also did not include appropriate control groups, and many studies did not control for desirability bias.264 We think these early studies helped influence animal advocates to see research into animal advocacy methods as possible and desirable, but that their utility is otherwise limited by some of their design flaws.

Again it's an issue with experimental design and control.

David, I would add that experimental design is a complex skill; it is an act of human imagination to formulate an experimental design that has internal and external controls.

Note that one of the key features of an SME is control over the experimental design of the ensemble via the algorithm used to perturb the parameters.

«The Psychometrics Centre had full control of the ads run to carry out the research and of the experimental design.»

While the Apple Pencil is designed as a sketching tool for creative professionals, MacRumors reader Simon Gladman has created three Swift demo apps that show the accessory being used for three unconventional purposes — as a weight scale, controlled synthesizer and 3D controller for image editing.PencilScalePencilScale, based on Goodman's Plum - O - Meter, is an experimental app that uses a homemade harness to turn the Apple Pencil into an electronic scale that is highly sensitive, but not incredibly accurate.The experiment works by subtracting the touch's force from a base weight, which is «set as the current touch force when the «zero» button is pressed,» and multiplying it by 140 for a very rough weight in grams.PencilSynthPencilSynth is an AudioKit - powered

Glitch, the experimental web development sandbox for beginners created by Fog Creek, today updated its service with a version control tool designed to allow users to revert to previous versions of their code, without the need to learn an expansive and complicated system like Git.

Helped design and carry out experimental procedures Performed Immunochemical staining Prepared Media and aliquots Conducted basic biological manipulations of bacteria Performed cell culture and seeding Participated in the Department's Quality Control, Quality Assurance, Safety, and preventive maintenance programs.

Expertise in statistical analysis: Statistical Process Control (SPC); in the design and analysis of experimental plans and monitoring of test results to improve manufacturing processes and quality assurance.

Environmental Engineer — Duties & Responsibilities Trained environmental engineer with experience in industrial and academic settings Oversee development and feasibility study of a new low level chlorine detection method by nanotechnology Direct identification and quantification of sulfate - reducing bacteria (SRB) and sulfur - oxidizing bacteria (SOB) by Real Time Polymerase Chain Reaction (RT - PCR) Lead research for «Control of distribution system water quality in a changing water quality environment» funded by Tampa Bay Water Authority, Water Research Foundation Responsible for analyzing biological parameters and interpreting data from distribution system samples Manage QA / QC and sampling protocol for all biological project samples Compose and organize the entire biological sections for final project reports Develop and verify empirical models relating biofilm density and HPC measurements to water quality Responsible for designing water, sewer, fire, and storm drainage systems for a 3 story building Composed an Operations & Maintenance Manual for drainage systems Drafted full - size CAD blue prints of drainage systems and other structures Proficient in water / waste water treatment, experimental design, and laboratory studies Provide research for a project studying the effects of ultra-filtration on oily waste water Create a full 40 MGD water treatment plant process and design for a fictional city in North China Oversee site and source water selection, water pump stations design, treatment plant planning and pipeline layout Drafted full - size CAD blue prints and composed an Operations & Maintenance Manual Experience with hydraulic modeling and waste water plant design Consistently recognized for excellence in team leadership, project management, and academic study

Studies were identified by searching Medline, HealthSTAR, PsycINFO, ERIC, and Current Contents for the years 1993 — 9 using the content terms child abuse, child neglect, battered child syndrome, incest, prevention and control, and screening combined with the methodological terms statistics and numerical data, aetiology, epidemiology, experimental design, meta - analysis, and literature review.

In addition, reviewers concerned with the possibility of contamination of control students by experimental students in our earlier randomized within - building study design preferred a nonrandomized design in which whole schools, rather than classrooms, were assigned to intervention or nonintervention conditions.

control group design, participants were randomly assigned to an experimental or wait - list group.

These marriage inventories, often designed and tested by experimental psychologists, tend to rank a couple's marital health against a «control group» of previously tested marriages.

Rather than using a waiting list control design and following children for only six months, these investigators employed an experimental design and followed the children for a longer period of time.

This report describes the outcomes of a behaviorally based parenting intervention for parents with infants and toddlers, using an experimental design with random allocation of participants to either intervention or enhanced waitlist — control conditions.