Chapter 1 Flashcards
In your article on hunger and academic performance, you note that you measured hunger by asking participants to respond, on a 1to 7 scale, how hungry they felt at the time of study. Your description measured hunger is called a(n)
Operational definition
What was the outlier in this distribution of numbers.[1 1 1 2 3 3 2 4]
9
A hypothesis must be
Testable
You conduct an experiment in which you hypothesize that the moods of participants will be influenced by the amount of light that they are exposed. What is the dependent variable?
The mood of the participants
What is the range of this distribution of numbers? [1 2 3 4 5]
4
Which of the following correlations is the strongest?
-.93
Studies have shown that depression increases as self-esteem decreases. Depression and self esteem are?
Negatively correlated
Which of the following distributions of a number is bimodal?
1 2 2 3 4 5 5 6 7
Who established the first psychological laboratory in Leipzig, Germany?
Wilhelm Wundt
Correlation prove causation
False
In experiments, independent variables are always ______. Dependent variables are always _____.
Manipulated; measured
Mary is conducting research to see how much time the typical college student spends either talking or texting on their cell phone. She has participants fill out logs of their entire cell phone usage for a week, along with collecting information such as demographics in there make and model of cell phone. Mary’s study would be considered?
Descriptive research
Samples that have the same mean always have the same median
False
To derive a standard deviation you?
Subtract the mean from each score and square this value, sum the squares and divide the sums by the number of scores minus 1, then take the square root
A correlation of +1.03 is
Not possible
