The phrase "assignment concealment" is correct and usable in written English.
It can be used in contexts where one is discussing the act of hiding or obscuring details related to an assignment or task.
Example: "The student faced consequences for the assignment concealment, as it was deemed unethical to hide the true nature of their work."
Alternatives: "task hiding" or "project obscuration".
Assessment of the trial reporting in terms of risk of bias, the use of random assignment, and subsequent concealment of allocation would qualify as adequate (that is, low risk of selection bias); it seems reasonable that at baseline the patients in the study groups were similar with respect to prognostic factors.
To ensure concealment, assignments were enclosed in sequentially numbered, opaque, sealed envelopes and stored by the trial coordinator before randomisation.
This approach represents a best practice approach to randomization, implementing an automated centralized group assignment procedure with allocation concealment, and effective separation of sequence generation and allocation concealment.
Consequently, there was no possibility for the investigator to predict the next treatment assignment, thus ensuring adequate allocation concealment.
Sealed envelopes containing a random number were generated in blocks of six to provide concealment of patient assignment from the investigators.
To ensure concealment of group assignment, the St Michael's Hospital research associate (SvdV) enrolled participants and then contacted the research assistant (YIG) at The Hospital for Sick Children with the participant's information (unique Hospital ID, date and time of C-section) for randomisation.
Figure 1 shows the flow diagram of the study participants The participant randomisation assignment will follow an allocation concealment process, that is, the researcher in charge of randomly assigning participants will not know in advance which treatment the next person would receive and will not participate in assessment.
In allocation concealment, two studies adequately concealed group assignments by adopting central randomization [ 16, 17].
243 Without adequate allocation concealment, even random, unpredictable assignment sequences can be subverted.
2 23 Proper allocation concealment shields knowledge of forthcoming assignments, whereas proper random sequences prevent correct anticipation of future assignments based on knowledge of past assignments.
