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a strategy that directs a researcher in planning and implementing a study in a way that is most likely to achieve the intended goal.
case study design an investigation strategy involving extensive exploration of a single unit of study, which may be a person, family, group, community, or institution, or a very small number of subjects who are examined intensively. The number of variables is usually very large.
cohort design longitudinal design.
cross-sectional design a research strategy in which one or more group(s) of subjects are studied at one given point in time.
experimental design a research design that eliminates all factors that influence outcome except for the cause being studied (independent variable). All other factors are controlled by randomization, investigator-controlled manipulation of the independent variable, and control of the study situation by the investigator, including the use of control groups.
longitudinal design a research strategy in which one or more group(s) of subjects in various stages of development are examined simultaneously with the intent of inferring trends over time. The assumption is that the phenomenon under study progresses with time. Called also cohort design.
methodological design a process used to develop the validity and reliability of instruments to measure constructs used as variables in research.
nonequivalent control group design a study design in which the control group is not selected by random means.
partial correlation design a design developed to eliminate the influence of a third variable on a relational pattern by holding it constant mathematically, so that the magnitude of the relationship between the two remaining variables can be determined.
path analysis design a design to determine the accuracy of a theoretical model: a hypothesized causal model is developed from the theoretical model and the major variables within it are measured and relationships among them determined; regression analysis is used to determine whether the data are consistent with the model.
survey design a design in which data are collected with questionnaires or through personal interviews with members of an identified population.
time dimensional design an investigation strategy for the examination of sequence and patterns of change, growth, or trends across time; see also prospective study and retrospective study.
trend design a research strategy to examine changes in the general population in relation to a particular phenomenon by means of data collected at predetermined intervals of time from different samples selected from the general population.


(1) See Design configuration (clinical trials).
(2) A design for an application to support an action on electronic records (eClinical trials).


See Double-masked design, Enrichment design, Experimental design, Masked study design, Open design, Rational molecular design, Single-masked design, Structure-based design, Universal design, Zelen design.


1. To devise, plan, or contrive.
2. the act or result of designing.
[L. designo, to appoint, designate]


v 1. to plan or delineate by drawing the outline of a proposed prosthesis.
n 2. the graphical and artistic representation of a plan.

Patient discussion about design

Q. Alcohol designator Order? What is an Alcohol designator Order?

A. Hello friend, Council can apply for an order to restrict public drinking in a particular area or areas. An order sets out the public areas affected e.g. streets, parks and open spaces, where the police could ask people to stop drinking alcohol if their behavior is deemed to be anti social. The police will be able to confiscate and dispose the alcohol and people could face a fine of up to £500 or arrest for refusing to cooperate.

Q. How to design and run a Ambulance Service effectively. Different Models, Costs, Safety features, Planning, Strategy, Promotions, Partnerships, Risks etc...

A. Hmm... this website ( ) contains a lot of information about how to run an ambulance service, from addresses to fee tables.

Hope I could help!

More discussions about design
References in classic literature ?
These considerations really put me to a pause, and to a kind of a full stop; and I began by little and little to be off my design, and to conclude I had taken wrong measures in my resolution to attack the savages; and that it was not my business to meddle with them, unless they first attacked me; and this it was my business, if possible, to prevent: but that, if I were discovered and attacked by them, I knew my duty.
I was sensibly touched with this discourse, and told him his inference was so just, and the whole design seemed so sincere, and was really so religious in its own nature, that I was very sorry I had interrupted him, and begged him to go on; and, in the meantime, because it seemed that what we had both to say might take up some time, I told him I was going to the Englishmen's plantations, and asked him to go with me, and we might discourse of it by the way.
And how shall a blessing succeed your endeavours in this place, however good in themselves, and however sincere in your design, while these men, who at present are your subjects, under your absolute government and dominion, are allowed by you to live in open adultery?
Designs, builds, and repairs precision injection molds for thermoplastics and thermosets using CNC machining.
Since 1997, the top-winning designs have been installed as murals in the Music Center garage.
Formal design reviews with the customer are conducted for both the preliminary and detailed designs.
Unlike other design management technology, Teamwork Design Manager provides built-in use models to help engineers working in multi-user design teams share and release designs.
These pronouncements generally required capitalization of the costs of all package designs currently in service.
the Design for Variability technology leader, today announced it is collaborating with Mentor Graphics(R) (Nasdaq:MENT), a world leader in electronic hardware and software design solutions, to address the critical issue of process and lithography variations in an IC implementation design flow targeted at 65nm and 45nm designs.
Builds and designs injection molds for presses up to 750 tons, and all types of standard and runnerless molds, including stack, two-color, shuttle, collapsible-core, thin-wall container, and unscrewing molds.
Design for variability on complex designs is supported through concurrent multi-mode/multi-corner and native on-chip variation (OCV) analysis with timing and crosstalk noise optimizations.
This process is especially taxing on computing resources due to the volumes of data required for large, complex designs.