The existence of individual variation in males' motivation to mate remains a conundrum as directional selection should favour high mating frequencies. Balancing selection resulting from (context-dependent) female mate choice could contribute to the maintenance of this behavioural polymorphism. In dichotomous choice tests, mosquitofish (Gambusia holbrooki) females preferred virtual males showing...

This course is an introduction to the mainstay of quantitative empirical work in political science, the linear regression model. We begin by putting the regression model in context by discussing causation, generalization, and quasi-experimentation. We then introduce the basic two-variable regression model, discuss its assumptions, and learn how to test hypotheses with it. This is followed by th...

Dichotomous choice (referendum) contingent valuation questions have gained popularity over the last several years due to their purported advantages for avoiding many of the biases known to be inherent in other value elicitation formats. However, this type of valuation question is inefficient in that a much larger number of observations is required to identify the distribution of values with any...

Silvopasture is considered as an environmentally benign land use system relative to conventional cattle ranching. However, most of the environmental benefits of silvopasture are external while the costs are internal to ranchers providing ranchers little or no motivation to implement silvopasture practices. We assessed Florida ranchers’ willingness to adopt silvopasture practices using a dichoto...

This study aims to identify the effects of health-related risk perception and sociodemographic characteristics on willingness pay (WTP) for travel insurance as a reduction behavior following outbreak COVID-19. Through application double-bounded dichotomous choice contingent valuation method, this found several determinants price (i.e., toward traveling, about influence COVID-19, past purchase e...

Dichotomous Dichotomous variables have only two categories or levels. Variables with values such as “yes” or “no,” “present” or “absent,” “test” or “control” are dichotomous. Gender is a dichotomous variable with two values ‐ “male” and “female.” Disease status (present/absent), exposure status (present/absent), residence (urban/rural), antibiotic sensitivity (sensitive/resistant), type of bact...