Author Question: A null hypothesis is _____________________. a. a statement of a causal explanation or proposition ... (Read 23 times)

chads108 · **on:** Aug 17, 2018

A null hypothesis is ___________________ __.

a. a statement of a causal explanation or proposition that has at least one independent and one dependent variable, and has yet to be empirically tested
b. a hypothesis that states there is no significant effect of an independent variable on a dependent variable
c. a hypothesis paired with the null hypothesis with two independent variables in which it is unclear whether one or the other variable, or both in combination, produces an effect
d. a confusing and poorly designed hypothesis with two independent variables making it unclear whether one or the other variable, or both in combination, produces an effect

Question 2

The experimental model is one of the most powerful means of controlling for rival causal factors before the fact through the design of research.

Indicate whether the statement is true or false