Experimental Design Quiz

What is the main focus of the chapter discussed?

• Survey design principles

• Statistical analysis methods

• Experimental designs and their internal validity

• Qualitative research techniques

Which of the following is NOT a source of internal invalidation mentioned?

• History

• Sample size

• Maturation

• Instrumentation

What does the term 'mortalidad experimental' refer to?

• The loss of participants during an experiment

• The interaction between selection and maturation

• The effect of time on participants

• The reliability of measurement instruments

Which design is a combination of pretest-posttest and posttest-only designs?

• Longitudinal design

• Cross-sectional design

• Factorial design

• Solomon four-group design

What is the purpose of using multiple comparison groups in an experiment?

• To increase the sample size

• To ensure the validity of the results

• To reduce the cost of the experiment

• To simplify data analysis

What is a potential effect of 'reactive effects' in experimental treatments?

• Participants may not understand the treatment

• Participants may forget the treatment details

• Participants may become overly familiar with the treatment

• Participants may behave differently due to awareness of being observed

Which of the following is a method to achieve initial equivalence in groups?

• Stratified sampling

• Random assignment

• Convenience sampling

• Systematic observation

What does 'interacción entre selección y maduración' imply?

• The influence of the experimenter on results

• The effect of time on measurement instruments

• The impact of external events on the experiment

• Different maturation rates due to selection bias

What is the main purpose of using experimental designs in research?

• To conduct surveys

• To manipulate variables and observe effects

• To collect qualitative data

• To analyze historical data

In a factorial design, what does the notation '2 x 2' indicate?

• Two treatments applied simultaneously

• Two independent variables, each with two levels

• Two dependent variables

• Two groups of participants