Explain the differences between internal validity and external validity. What can you do to increase both simultaneously?
What will be an ideal response?
Whereas internal validity refers to how well the study establishes causal relationships, external validity refers to the generalizability of the results. High external validity means the study's findings generalize well to populations that have characteristics similar to the sample. Results of a research study that uses a large human sample tells us more about humans in general than results of a similar study with a small human sample or an animal study. For that reason, all other things being equal, the large human sample study is said to have higher external validity to human populations.
One study cannot match the potential generalizability of multiple studies statistically averaged together. When we average the results of a number of similar single studies of high methodological quality we can maximize both internal validity and external validity. It is important to note that if the studies being averaged have poor methodological quality, however, pooling them will not help.
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Answer the following statement true (T) or false (F)
________ occurs when the fetus experiences a sudden lack of oxygen, change in heart rate, or change in respiration
Fill in the blank with the appropriate word.
Jacque is told that he will be taking the Wechsler Intelligence Scale for Children. What type of task should Jacque expect to complete as part of the assessment of his performance IQ?
A. Arithmetic reasoning B. A test of general knowledge C. Puzzle assembly D. Vocabulary
The first full-fledged psychology laboratory was founded __________________.
a. by Wilhelm Wundt in 1892. b. by William James in 1879. c. by Wilhelm Wundt in 1879. d. by William James in 1892.