In "The Creator and the Cosmos" Hugh Ross has done an excellent job of summarizing the evidence against an observer created reality. With modest additions, deletions, and nuancing by the present author:
1. There is no movement from imprecision to precision in quantum phenomena. All that happens is that the observer can choose where to put the imprecision. If the observer chooses to measure the position of the quantum particle sufficiently precisely, he or she loses the potential for some degree of precision in measuring the particle's velocity. Conversely, if the experimenter decides to measure the velocity of the quantum particle sufficiently accurately, the potential for unlimited precision on the position of the particle will be irretrievably lost.
2. Experiments are obviously designed and directed by human beings. But this does not mean that the observer gives reality to the quantum event. One can always imagine a set of natural circumstances (involving no human being) that could give rise to the same quantum event. The observer can choose some aspect of reality he/she wants to discern in a particular experiment. Though in quantum entities, indefinite properties (see discussion below following point 5.) become definite to the observer through measurements, the observer cannot determine how and when the indefinite property becomes definite.
3. Rather than affirming the postmodernist view that human beings are more powerful than we might have imagined, quantum mechanics tells us that we are weaker. In classical physics (Newton and Maxwell, pre-1900) no apparent limit exists on our ability to make accurate measurements. In quantum mechanics, a fundamental and easily determinable limit exists. In classical physics, we can see all aspects of causality. But in quantum mechanics some aspect of causality always remains hidden from human investigation.
4. The time duration between a quantum event and its observed result is always very brief, briefer by many orders of magnitude than the time period separating the beginning of the universe from the recent appearance of human beings. Speculations to the contrary, for both the universe and people, time is not reversible. Thus, no amount of human activity can ever affect events that occurred billions of years ago. The idea that one can create his or her own universe receives no support from quantum mechanics.
5. An experiment designed with insufficient foresight or performed with insufficient care may be unintentionally disrupted. And there are observations that cannot be understood without taking the uncertainty principle into consideration. Nevertheless, experiments consistently reveal that nature is described correctly by the condition that the human consciousness is irrelevant. A properly described experiment carried out in Berkeley, California can be reproduced by a different group of scientists in Cambridge, England one year later. Furthermore, there is nothing particularly special about human observers. Inanimate objects, such as microwave, infrared, and ultraviolet spectrometers, are far more capable than humans of detecting quantum mechanical events.