Answer:
fixed interval schedule of reinforcement is the correct answer.
Explanation:
No they can't. They still have to have a search warrant, or they cannot legally use your phone against you in the court of law.
The recent occurrence of both severe and prolonged droughts as well as floods is being worsened by global climate change.
Global climate change is the rise in average surface temperatures on earth which occurs mainly as a result of human activities such as the use of fossil fuels, which discharges carbon dioxide and other greenhouse gases into the air. These gases trap heat within the atmosphere and this can have various effects on ecosystems, including droughts, rising sea levels, and very bad weather events.
The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.