Final Introduction Quiz

Which of the following is a continuous variable:

The independent variable changes the dependent variable

A variable in an experimental study that is also called a response variable:

A variable that can be counted and could have fractions is called ___ variable a-Dependent

Which of the following is a nominal data?

The educational level for a student represents

The most common used source /technique of data is

Which type of variables is calcium level:2.5,3,4 etc..

30% of collage students are predicted to travel out the country during spring break

_______is a characteristic that differs from one individual to the next ,such as the blood pressure

For the random sample, find median, mean and mode: (25,12,23,33,40,12,17,35)

Find the Q3 and 10-90percentile Range from these values: (3,5,7,10,12,15,16,19,22,23,26,28,31,34,37,39)

Find sample variance and Standard deviation of ages (3,2,4,5,7) respectively :

Find IQR, semi interquartile and Range for the following data respectively : (5,6,7,8)

Suppose two samples and yield the following data Sample1---mean =15,standard deviation=3 Sample2---mean=20,standard deviation =3 Which one is more variable?

A study starts with 5000 people. Of these, 125 have the disease, what is the prevalence of disease per 1000 people?

(Number of new cases of disease in a population over a period of time divided by the population at risk at the beginning of the period). Is called :

In a country 2300 persons without leukemia were followed for 1year , 100 persons of them developed leukemia, the cumulative incidence and the incidence density are ,respectively:

A researcher is interested in reporting how many people in a community were diagnosed with COVID 19 during the last month .He/she would measure the:

In a population of 10,000,000 people at a given time 500 individuals have motor neuron disease .what is the point prevalence of motor neurone disease in this population at this given time

An observed difference between study subgroups in rate of disease or mean level of any study variable, is:

In cohort study, 80 of the 400 smokers developed coronary artery disease (CAD) over the period of FU compared to 40 of the 800 nonsmokers. Calculate the relative risk of CAD for smoking.

In cohort study, 90 of 600 smokers developed coronary artery disease(CAD) over the period of FU compared to 30 of 900 nonsmokers. Which sentence describes the Relative risk of CAD for smoking.

In case control study, 50 of the 200 cases with CAD were smokers compared to 25 of 400 controls. Calculate the odds ratio of CAD for smoking.

Which statement is correct corresponding to the correlation

How much of the risk is due to a given exposure.. Refers to:

The criteria in support of causality of an association are :

Classify humen action (this is morally acceptable and thus is morally not acceptable) :

You have two cases, one of them is more sick and the second one comes before you give the turn to:

All the ethical tissue under discussion are :

-"Is it morally justifiable to breach confidentiality?" the Q is considered:

The weakest theory of ethical is :

The theory that based on the rightness of the act is measured by tge consequences:

All of the following are why sudden interest in EBM except :

Acquiring is step of practicing EBM:

All of the followings are types of information resources except :

High-level overview is :

Guidelines are fixed protocols that must be followed :

In the case of Aids patient, which of the following is considered vulnerable?

The first time for truth principle is introduced since the days of Hippocrates through the oath of medical ethics.

In the case of Corona patient, which of the following is considered vulnerable?

Noncompliance in supplying names of partners should be sanctioned.

Medicine is the science of certainty.

The logical sequence is used from all the following EXCEPT

Science is imperfect, especially when it is applied to human behavior and performance , What is the Sources of uncertainty:

What is the last step in research using scientific method:

Infectious and chronic diseases show

All the following are correct EXCEPT:

What is the final step of evidence-based practice?

What is the best design to study the efficacy of an intervention?

What is the best trial design to study the prognosis of a disease?

All the following are sources for the secondary literature except

The weakest evidence finds in

Which of the following depends on bias elimination

What study type(s) provide the best evidence for answering questions relating to prognosis or risk?

Identify the type of the study design below indicated. *An investigator takes a sample of healthy individuals, record their ongoing solar exposure, and relate that to the subsequent occurrence of skin cancer in the same group*.