Examlex
Indicate whether the following statements are true (T) or false (F).
___ The linking number (Lk) of a closed-circular DNA molecule can be changed only by breaking one or both strands.
___ DNA of all organisms is overwound (i.e., positively supercoiled).
___ Topoisomerase I relaxes DNA that is highly negatively supercoiled.
0 And 10
In the context of scales, '0 and 10' often refer to the endpoints of a Likert scale used in questionnaires, where '0' might represent 'strongly disagree' and '10' 'strongly agree.'
Established Measures
Validated and widely accepted tools or instruments used to assess or measure specific variables in research.
Validity
The degree to which a research study or testing instrument accurately measures what it intends to measure.
Interval Measures
A scale of measurement where the difference between any two consecutive measures is the same, but it does not have a true zero point, e.g., temperature scales.
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