The chief function of the control group in an experiment is that it
a. allows mathematical relationships to be established.b. provides a point of reference against which the behavior of the experimental group can be compared.
c. balances the experiment to eliminate all extraneous variables.
d. is not really necessary.
The control group provides a point of references for the experimental group to be compared.
The control group is not necessary for mathematical relationships.
Having a group tested under a controlled environment still has extraneous variables.
The control group is necessary to compare the experimental groups.
Science
- Who presented models of spinal dysfunction?
- Who presented neurological consequences of degeneration?
- Who presented adverse cord tension?
- Who did the cat study?
- Who presented muscle spindles, paraspinal sympathtonica, and Dyskesnia?
- Who came up with the five component model?
- Based on Dobson's and Boone's paper which of the following is NOT apart of the assessment of health for a VSM?
- In Dobson's and Boones paper what did they decide provides the congruency between all three elements of chiropractic?
- In Dobson's and Boone's paper they have noticed that one important concept it disapearing and is being equated as the action potential, What is being equated?
- (Blank) 1995 observed changes in neuromuscular performance in a study of 90 healthy young males with delays in FFA . With one adjustment there was a reported 38% reduction in feed forward latency. fill in the blank?
- Who did a study showing that during an adjustment the POP sound has and average distance of 5.29 cm from the actual adjustment?
- Who came up with the Somatoautonomic reflex hypothesis or SAR?
- What is this describing, "Spinal joint lesions may trigger facilitation induced reflexes that impair or disturb visceral function"?
- Who developed an algorithm to evaluate the given chiropractic technique or practice methods a step by step approach to assess the quality of a given technique?
- Which of the Following is NOT apart of the EBM Triad?
- Who came up with this model "1. dysfunction (SDF) 2. instability 3. stabilization"?
- 1. articular overstress 2. instability 3. episodic fixation 4. stabilization who made this model?
- Who stated that spinal manipulations produced an increase in polymorphonuclear neutrophil isolated in blood 15 minutes after compared to 15 minutes before?
- What does this describe "2 extremes will tend to swing back to the middle"?
- What does this describe, "you perform better when you know someone is watching"?
- What does this describe "after this therefore because of this. one event happens before another therefore the later is caused by the first.."?
- What does this describe, "a patient presents with what appears to be visceral symptoms but are actually caused by dysfunction in somatic structures."?
- What does this describe "spinal joint lesions may trigger facilitation involved reflexes that impair or disturb visceral function"?
- Who demonstrated that cervical dysfunction may impact on joint position sense?
- What does this describe, "formation of a clear space or bubble was not the source of joint cracking but rather was caused by collapse of the bubble"?