Experimental Design in Psychology

The video tutorial covers experimental design in psychology, focusing on three main types: independent groups, repeated measures, and matched pairs designs. Each design is explained with its advantages and disadvantages. Independent groups design involves separate groups for each condition, leading to unrelated data and potential participant variable issues. Repeated measures design has participants in all conditions, resulting in related data but possible order effects. Matched pairs design attempts to balance participant variables and order effects by matching participants on key characteristics. The video concludes with additional resources for further study.

What is the primary focus of experimental design in psychology?

• Analyzing statistical data

• Using participant samples with independent variables

• Developing new psychological theories

• Conducting surveys and interviews

In an independent groups design, what is a potential issue that can affect the results?

• Participant variables

• Counterbalancing

• Order effects

• Demand characteristics

What is a common issue with independent groups design?

• Demand characteristics

• Counterbalancing

• Participant variables

• Order effects

How does a repeated measures design address participant variables?

• By randomly assigning participants to conditions

• By comparing each participant's score in both conditions

• By using unrelated data

• By using different participants for each condition

What is a potential drawback of repeated measures design?

• It requires more participants

• It can lead to order effects

• It uses unrelated data

• It is more time-consuming to set up

What type of data is collected in a repeated measures design?

• Unrelated data

• Qualitative data

• Related data

• Random data

What is counterbalancing used for in experimental design?

• To reduce demand characteristics

• To increase sample size

• To control order effects

• To eliminate participant variables

Which design attempts to address both participant variables and order effects?

• Independent groups design

• Counterbalanced design

• Repeated measures design

• Matched pairs design

In a matched pairs design, how are participants assigned to conditions?

• Randomly without any prior measurement

• Based on their scores on a characteristic

• By allowing participants to choose

• By alternating between conditions

What is a disadvantage of the matched pairs design?

• It requires fewer participants

• It is prone to order effects

• It eliminates all participant variables

• It takes longer to set up