A known nephrotic syndrome patient is admitted to the paedi…

 A known nephrotic syndrome patient is admitted to the paediatric ward with abdominal pain and fever. On examination he has oedema, a temperature of 38 degrees Celsius and tachycardia. On abdominal palpation it is tender. He has a raised C reactive protein. What is the most likely cause of these symptoms?

In a laboratory, smokers are asked to “drive” using a comput…

In a laboratory, smokers are asked to “drive” using a computerized driving simulator equipped with a stick shift and a gas pedal. The object is to maximize the distance covered by driving as fast as possible on a winding road while avoiding rear-end collisions. Some of the participants smoke a real cigarette immediately before climbing into the driver’s seat. Others smoke a fake cigarette without nicotine. You are interested in comparing how many collisions the two groups have. In this study, the dependent variable is ___________.

If the number of storks in an area is fairly high, the numbe…

If the number of storks in an area is fairly high, the number of human births 9 months later will be fairly high. Therefore, storks cause babies. This example points out the difficulty with ___________.                                                                       

A developmental psychologist is interested in children’s pla…

A developmental psychologist is interested in children’s play behavior.  She watches a group of children playing on a playground and records what each child does, such as how often they play together and separately, what games they play, and how much they share toys.  She is using which of the following research methods?