Which of the following is a reason for a researcher to select a quasi-experimental design? Select one:

a. To enhnace external validity.
b. To avoid the ethical issues a true experiment would cause.
c. To take advantage of real-world opportunities to study phenomena and events.
d. All of the above.

A quasi-experiment is a factual conventional study that is used to calculate the causal effect of interference on a target population without an irregular function. Quasi-experimental research shares closeness with traditional experimental design or randomized controlled trials, but lacks the element of random assignment specifically for treatment or control.

Instead, quasi-experimental designs typically allow the researcher to control the assignment to treatment status, but use some criterion other than random assignment (For example- an eligibility cutoff mark).

Which of the following is a reason for a researcher to select a quasi-experimental design? Select one: a. To enhnace external validity. b. To avoid the ethical issues a true experiment would cause. c. To take advantage of real-world opportunities to study phenomena and events. d. All of the above.

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Which of the following is a reason for a researcher to select a quasi-experimental design? Select one:

a. To enhnace external validity.
b. To avoid the ethical issues a true experiment would cause.
c. To take advantage of real-world opportunities to study phenomena and events.
d. All of the above.