During experimental design, a variable is defined as:

Related MCQs

• In a study, subjects are randomly assigned to one of three groups: control, experimental A, or experimental B. After treatment, the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:
• In a study, subjects are randomly assigned to one of three groups: control, experimental A, or experimental B. After treatment, the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:
• A simple experimental design with two levels of an independent variable cannot
• A researcher is conducting a 3 x 2 factorial experiment. In variable 1 participants are randomly assigned to one of 3 conditions. In variable 2 participants respond to both levels of the independent variable. Which of the following best describes this study?
• In a factorial design, a(an) ______________ between independent variables indicates that the effect of one independent variable is different at different levels of the other independent variable.
• In a factorial design, a(an) ______________ between independent variables indicates that the effect of one independent variable is different at different levels of the other independent variable.
• The use of CAD (computer-aided design) is emerging as a new technology with the goal of reducing the time and money spent to produce and update design drawings. In some cases, the CAD is being used to control other computers and machines to manufacture basic components of equipment. Because the CAD software has the capability to perform checks of the design and make changes to designs as they are approved, there has been ______________.
• Which of the following is an assumption of one-way ANOVA comparing samples from three ‘or more experimental treatments?
• This means that for every unit increase in your independent variable, your dependent variable increases b 0.478 units What degrees of freedom do you report in a multiple regression?
• An advertising executive is studying television-viewing habits of married men and women during prime time hours. On the basis of past viewing records, the executive has determined that during prime time, husbands are watching television 40% of the time. It has also been determined that when the husband is watching television, 40% of the time the wife is also watching. When the husband is not watching television, 30% of the time the wife is watching television. Find the probability that the wife is watching television in prime time.