Dental research

Non-sampling errors are introduced due to technically faulty observations or during the ........ Of data?

In order to save time and money, psychologist collect their data by?

The specific statistical methods that can be used to summarize or to describe a collection of data is called?

Data is simply the numerical results of any scientific... ?

The...................process would be required to ensure that the data is complete and as required?

A sample is a portion of the population that is considered for study and analysis?

Both the sampling as well as the non-sampling errors must be reduced to a minimum in order to get representative a sample of the …… as possible ?

A variable is any characteristic which can assume value?

The basic objective of a sample is to draw…… about the population from which such sample is drawn?

What is the defining characteristic of experimental research?

Which of tho following includes examples of quantitative variables?

Which of the following can best be described as a categorical variable?

What is the opposite of a variable?

The strongest evidence for causality comes from which of the following research methods?

A numerical value used as a summary measure for a sample, such as sample mean, is known as a?

Since the population size is always larger than the sample size, then the sample statistic?

The mean of a sample is?

The sum of the percent frequencies for all classes will always equal?

In a five number summary, which of the following is not used for data summarization?

Since the mode is the most frequently occurring data value, it?

Mu is an example of a?

The mean of a sample is?

The difference between the largest and the smallest data values is the?

Which of the following is not a measure of central location?

If a data set has an even number of observations, the median?

The sum of deviations of the individual data elements from their mean is?

The value that has half ofthe observations above it and half the observations below it is called the?

He most frequently occurring value of a data set is called the?

A tabular summary of a set of data showing the fraction of the total number of classes is a?

The standard deviation of a sample of 100 observations equals 64. The variance of the sample equals?

The variance of a sample of 81 observations equals 64. The standard deviation of the sample equals?

Refer to exhibit 3-2. The median is?

Refer to exhibit 3-2. The mode is?

Refer to exhibit 3-2. The mean is?

Refer to exhibit 3-3. The range is?

Refer to exhibit 3-4. The mean is?

Which of the following is not a nfeasure of dispersion?

He measure of dispersion that is innuenced most by extreme values is?

When should measures of location and dispersion be computed from grouped data rather than from individual data values?

The descriptive measure of dispersion that is based on the concept of a deviation about the mean is?

On matters of academics (knowledge) a researcher should consider himself as?

Given the N values in a series, the geometric mean is?

Which of the measures given here are based on every item of the series?

A researcher selects a probability sample of 100 out of the total population. It is?

If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be?

Generalized conclusion on the basis of a sample is technically known as?

A statistical measure based upon the entire population is called parameter while measure based upon a sample is known as?

If x is 48, Median is 47, Mode value will be?

Since the population size is always larger than the sample size, then the sample statistic?

 is an example of a?

The stages of a malignant disease (cancer recorded using the symbols o, I, II, II, IV. We say is tha the scale used is?

The fundamental statistical indicators are?

If the average of a series of values I 10 and their variance is 4, then the coefficient of variation (= the ratio standard deviation /average) is?

The median of a series of numerical values is?

The median of a series of numerical values is?

Relative risk?

If on a group of 457 patients, for a risk factor we calculated a Relative Risk RR 2.74, the possibilt of developing the disease being investigated is?

The result of a statistical test, denoted p, shall be interpreted as follows?

If, after performing a student test for comparison of means, we obtain p 0.0256, then

Which of the following are goals of vaccination?

A "benefit" of research may accrue?

The most important element of ethical research on human subjects is?

Surveillance data must be?

The requirements for an effective surveillance system include?

A good surve should provide information about?

Most surve ance systems use which of the following study designs?

Results of surveillance should be distributed to?

The most important goal of a behavioral intervention is?

The stages of a malignant (cancer) is recorded using the symbols o, I. II. III, IV. We say that the scale used is:

The fundamental statistical indicators are:

The average of series of numerical values is:

Standard deviation:

He median of a series of numerical values is:

The median of a series of numerical values is:

The result of a statistieal test, denoted p shall be interpreted as follows:

If after performing a student test for comparison of means, we obtain p= 0.0250, then:

A study was Conducted in Cambodia to find out the of blacks and white Cambodian proportion in Cambodia. This variable chosen is:

The median of the following data is: 1,2,4,6,8,10,11,13:

A household survey of two families was conducted by students of 4th year DDs. In her collected data, the ages of heads of families were: 32,34,35,36,42,44,46,48 and 52. The mean age of heads of families is:

For a survey, a village is divided into 5 lanes, each lane is sampled randomly. It is an example of:

Tools of measurement in Epidemiology are

If there had been 3,000 new cases ofdental caries in population of 30.000 in a year, then the incidence rate would be:

Observing the distribution of disease or health __ related characteristics in human population with respect to time, place and person is known as:

Cross __ sectional study is also known as:

The epidemiology method which provide background data for planning, organizing and evaluating preventive and curative services is:

Case control studies are often called as:

Which one of the following is correct about case control method ?

The process by which the controls are selected in such a way the they are similar to case with regard to certain pertinent selected variables is known as :

The components of epidemiology are:

Cohort study is also known as:

Which one of the following is correct about cohort study?

The basic approach in cohort studies is to work from:

Which one of the following is correct about cohort study:

Pilot study is done to:

The "unusual" disease in a community clearly in excess of "Expected occurrence" occurrence of is known as:

The level of resistance of a community or group of people to a particular disease is known as:

Experimental studies are:

Matching is done to :

Picking every 5th or 10th unit at regular intervals is:

Hypothesis is:

Risk factors related to dental caries are:

Mean and standard deviation come be worked out only if data is on ?

If we reject Nul! Hypothesis, when actually it is true, it is known as ?

Find the mode in the following data set (11,12,13.14,14)

Which of the following is not a measure of central tendency ?

Standard deviation is the square of:

A circle divided into sector proportional to the frequency of items shown is called:

Correlation coefficient is a number between :

In biostatistics, group of individuals taken for study is called as :

Variables whose values can be expressed numerically are called:

Flower color is a :

Quantitative variables that has only fixed or finite values are called :

Height of students in a class is a :

In inferential statistics, we study :

In descriptive statistics, we study:

When data are collected in a statistical study only a portion or subset of all elements of interest we are using:

In Statistic, a sample means :

The height of a student is 1.65m. This is example of ............

Data in the population Census Report is :

Statistics is a numerical quantify, which is calculated from:

Which one of the following measurement dose not divide a set of observations into equal parts?

You ask five of your classmates about their height, on the basis of this information, you stated that the average height of all students in your faculty is 1.65m. This is example of :

In statistics, a population consists of :

Which one is the not measure of dispersion:

Mu is an example of a:

The difference between the largest and the smallest data values is the:

The sum of the percent frequencies for all classes will always equal:

In a five-number summary, which of the following is not used for data summarization?