BACHELOR OF BUSINESS ADMINISTRATION

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BUSINESS ADMINISTRATION

RESEARCH METHODOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A researcher believes his test prep system will increase test scores. He randomly divides his subjects into two groups and gives one group the test prep in the other no prep. He then compares the scores on the next test. What type of research study is this?
A
Experimental
B
Ethnographic
C
Narrative
D
Case-study
E
Correlational
Explanation: 

Detailed explanation-1: -Inferential statistics The purpose is to answer or test the hypotheses.

Detailed explanation-2: -Four major design types with relevance to user research are experimental, quasi-experimental, correlational and single subject. These research designs proceed from a level of high validity and generalizability to ones with lower validity and generalizability.

Detailed explanation-3: -The experimental method features the manipulation of an independent variable, the measurement of a dependent variable, and control of extraneous variables.

Detailed explanation-4: -The parametric test called t-test is useful for testing those samples whose size is less than 30. The reason behind this is that if the size of the sample is more than 30, then the distribution of the t-test and the normal distribution will not be distinguishable.

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