Janiszewski and Uy (2008) conducted an experiment in which they had 43 participants read 10 scenarios. In this study, the researchers wanted to determine the impact of the scenario type on the anchoring and adjusting of participants. Anchoring and adjustment occurs when people use a starting point (anchor) as a basis to make judgments about a given scenario (adjustment). How many levels are there for the independent variable in this study?

10 levels

Explanation:

The study aimed at studying the effect of scenarios on anchoring and adjustment. The test scenarios are 10 and are the independent variables while anchoring and adjustments are the dependent variables.

Since the participants are subjected to reading 10 scenarios, the levels of the independent variables are 10. For example if i were to study the effect of 3 nitrogen levels on crop yields, the levels of the independent variable will be 3.

a would be the answer

answer; ///attempts to change more than once behavior at the same time;