Professor wong measures the intelligence and temperament of a group of preschoolers. he plans to study the same group of participants over time and collect data when the children are in grades 3, 6, and 9. this is an example of which type of research design?

This is an example of a longitudinal study.

Explanation:

Longitudinal studies usually aim to study the behavior of a variable over time, which is why the variable has to be studied in the same sample throughout the length of the study.

In this type of research design the researcher do fieldwork on several ocasions, in different points in time, i. e. every five years. Professor's Wong study has a longitudinal design because he aimes to study intelligence and temperament over time and he plans to study the same group of children every three years.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -