Can you answer the fill ins e-j, and #\'s 1-3? d. A carefully chosen subset of a

Question

Can you answer the fill ins e-j, and #'s 1-3?

d. A carefully chosen subset of a populallUllI e. In , information is gathered from a sample and then generalized to a population. f. Any trait that can change values from case to case is known as a g. A variable with a unit of measurement that can be subdivided infinitely is called h. Th e variable is thought to be caused by the independent variable is a variable with a basic unit of measurement that cannot be subdivided variable is thought to cause the dependent variable. II. Multiple Choice Questions 1. If people who eat at fast food restaurants become obese, obesity is a. an independent variable. b. a causal variable. c. a dependent variable d. None of the above 2. In the research process, theory a. is unnecessary b. is always fully developed before any data is gathered. c. is developed only after the data have been completely analyzed. d. attempts to explain the relationship between phenomenon. . In the language of science, a variable that is thought to be causal is called a. an independent variable. b. a hypothetical variable. c. a primary variable. d. a dependent variable. 21 P a g

Explanation / Answer

(e).

Sampling:

Explaination: Sampling is a method that allows researchers to infer information about a population. It helps to generalized decision from sample to polulation.

(f).

Variable

Explaination: When a trait can change values from case to case, it is a variable. For example: Weight, Height, Color, Marks etc.

(g).

Ratio scale variable

Explanation: We have mainly four scales of measurement for variables. The ratio scale is the only one where we can subdivide the unit infinitely. For example: Height, Weight etc. In case of variable Gender, we can not subdivide the things.

(h)

Dependent variable

Explaination: When we study a set of variables, some times the change in one variable is caused by the change in another variable. For example: Marks of student and IQ of a student. Marks obtained depend on IQ of a person.

(i)

Nominal

Expalination: Nominal variable can not be further subdivide. We can divide height, weight but we cannot divide the nominal variable like Profession, Gender etc.

(j).

Causal Vaiable

Explanation: Dependent variable is caused by another variable called causal variable. It becomes the cause for change in dependent variable.

II Multiple choice Questions:

1. Dependent variable.

Explanation: Since obesity depends on eating fast food.

2. is always fully developed before any data is gathered.

3. Independent

Explaination: Causation indicates that one event is the result of the occurrence of the other event; i.e. there is a causal relationship between the two events. This is also referred to as cause and effect.

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