Trials
TRUE
observations
Hypotheses
A set of related hypotheses is a group of statements or propositions that are interconnected and aim to explain a particular phenomenon or answer a specific research question. These hypotheses are typically tested through empirical research to assess their validity and support.
No, not all scientific hypotheses which are tested at level 1 are of significance.
Is a theory.
A theory
collecting data
For something to be a theory it must have already gone through the hypothesis stage, being tested and accepted.
An independent variable. This is the variable that the researcher can manipulate or change to observe its effect on the dependent variable.
An observable explanation, that can be tested.