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STatiana [176]
3 years ago
7

A major increase in cigarette taxes occurs during a one-year follow-up study of the impact of a smoking cessation program. Ident

ify the main threat to internal validity (History, Instrumentation, Maturation, Mortality, Selection Bias, or Testing).
Social Studies
1 answer:
saul85 [17]3 years ago
5 0

Answer:

The main threat to internal validity here is History.

Explanation:

Internal validity refers to how well a research is conducted. Internal validity determines if it's the independent variable (or another factor) that caused or resulted in the change in the dependent variable.

History here alludes to the internal validity threat that refers to events outside of the experimental setting (increase in cigarette taxes) that may affect the dependent variable (smoking cessation).

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State is a concept, an idea or a name used to denote a community of persons living on a definite territory and organised for the exercise of sovereignty. ... Government is made by the people of the State. It is formed by the representatives of the people. It has a definite and defined organisation and form.

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denis23 [38]

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It could be rephrase as thus:

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4 years ago
The title of the head of Mexico
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Answer:

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2 years ago
Why is D-Day considered a turning point in World War ll?
Pepsi [2]

Answer:

D-Day marks turning point in World War II. ... Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. The operation began the liberation of German-occupied France (and later Europe) from Nazi control, and laid the foundations of the Allied victory on the Western Front.

Explanation:

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3 years ago
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tatyana61 [14]

Answer:

correlational research

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When two variables are related, like time spent studying and the grades achieved by students a psychologist research seeks to analyze the relationships that stem from changes in a variable that impact directly the other:

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