The phrase "absence of manipulation" is correct and usable in written English.
It can be used in contexts discussing the lack of interference or alteration in a process, experiment, or situation.
Example: "The results of the study were deemed reliable due to the absence of manipulation in the data collection process."
Alternatives: "lack of interference" or "no alteration present".
Needling the nonacupoint led to statistically significant increases at six sites when manipulation was present compared with none in the absence of manipulation.
(As noted by Hesketh and Xing (2006), p. 13, 271, "In the absence of manipulation, the sex ratio at birth is remarkably consistent across human populations, with 105 – 107 male births for every 100 female births".
Examining pain reported in the absence of manipulation due to dressing change or after wound healing may be indicative of a chronic pain condition.
Here the absence of authorial manipulation proves an effective dramatic device.
Here, we denote by the constant value of the speed of sound in the absence of any manipulation of the BEC parameters.
Still, even in the absence of deliberate manipulation, boards of directors could be held accountable for whether they have produced accurate financial statements that properly reflect accounting for options grants.
For others, the absence of hormonal manipulation of the mind may be a relief, allowing a metamorphosis to a less distracted state.
The aim of this study was to characterize the effect of opioid receptor blockade on the physiological processing of painful thermal stimulation in the absence of cognitive manipulation.
Subjects learned a discrimination between 2 and 3 objects in the absence of any manipulation of the stimuli; after animals had achieved learning criterion they were tested without reward while controlling for one perceptual non-numerical variable at a time.
Subjects learned discrimination between 4 and 8 objects in the absence of any manipulation of the stimuli; after subjects reached learning criterion they were tested without reward while controlling one continuous variable at a time.
To our knowledge, CD40-stimulated B cells are the first example of a differentiated cell type from healthy human donors that undergoes conditional immortalization in vitro, in the absence of genetic manipulation.
