When conducting experiments, we play around with some variables and measure changes in others. The way we organize these elements is called the 'experimental design.' There are three basic types: Independent Measures Design, Matched Pairs Design, and Repeated Measures Design.
Let's dive into each one with a fun example! ๐โ๏ธ
In this design, we randomly sort participants into groups, like drawing names from a hat. For instance, imagine we're conducting an experiment to see if praise improves student performance. We randomly assign students to a 'praised group' and a 'non-praised group.' We ensure the conditions for both groups are the same except for our independent variable (the praise). Then we measure their performance (our dependent variable).
โจ Pro tip: The magic of random assignment is that any confounding variables (those sneaky variables that might interfere with our results) are likely to be evenly distributed, making the groups as similar as possible. It's like creating a basket of assorted fruits that are similar in nutritional value, even if they include both apples and oranges.
Dive deeper and gain exclusive access to premium files of Psychology HL. Subscribe now and get closer to that 45 ๐
When conducting experiments, we play around with some variables and measure changes in others. The way we organize these elements is called the 'experimental design.' There are three basic types: Independent Measures Design, Matched Pairs Design, and Repeated Measures Design.
Let's dive into each one with a fun example! ๐โ๏ธ
In this design, we randomly sort participants into groups, like drawing names from a hat. For instance, imagine we're conducting an experiment to see if praise improves student performance. We randomly assign students to a 'praised group' and a 'non-praised group.' We ensure the conditions for both groups are the same except for our independent variable (the praise). Then we measure their performance (our dependent variable).
โจ Pro tip: The magic of random assignment is that any confounding variables (those sneaky variables that might interfere with our results) are likely to be evenly distributed, making the groups as similar as possible. It's like creating a basket of assorted fruits that are similar in nutritional value, even if they include both apples and oranges.
Dive deeper and gain exclusive access to premium files of Psychology HL. Subscribe now and get closer to that 45 ๐