They preformed gratefully under his leadership rights. <span />
Answer: In the late 1800's and early 1900's, urban areas of the United States attracted thousands of immigrants because of the ready availability of industrial jobs.
Answer: a. testing effect
Explanation:
Testing effect is a type of threat to internal validity of an experiment. Internal validity is assessing whether a factor makes a difference in an experiment or not and if it does, whether there is adequate evidence to support this correlation.
Testing as a threat to internal validity is when a second test is taken on the outcome of a first test. Other internal validity threats are history, maturation, instrument modifications.
1) b
2) h
3) f
4) k
5) d
6) e
7) L
8) j
9) f
10) g
11) i
12) a
13) f
14) c
15) f
May not be 100% correct I didn't know a couple but I made an educated guess
Good research questions often investigate <u>relationship</u>, which means that two qualities or characteristics are tied together or connected in some way.
Research refers to the systematic investigation carried into and study of materials and sources that would help to establish facts and simultaneously derive new conclusions.
Relationship in research refers to how two or more qualities or variables are connected or corelated to each other. It helps us to understand the degree of correspondence.
The whole concept of research plays a very crucial role in the field of psychology or any other field for that matter. This is so because research help us to investigate things in detail and draw inferences.
To learn more about research here
brainly.com/question/18723483
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