Developmental Research Design in Technology Projects

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Questions and Answers

What was the primary purpose of using developmental research design in the study?

To gather materials for the device assembly

To test the efficiency of the SwiftCounter prototype (correct)

To analyze the data from the experimentation

To focus on identifying the problem

Which phase involved the cost analysis of materials for the project?

Second phase (correct)

Fifth phase

Third phase

First phase

What materials were purchased online for the development of the SwiftCounter?

Arduino Nano and infrared sensor

All materials were sourced locally

Battery and wires

Huskylens, DC motor gear, LCD display, and 10K resistor (correct)

How many trials were conducted to test the efficiency of the SwiftCounter?

30 trials Signup and view all the answers

What components were included in the first circuit design for the study?

5V relays, LCD display, and 2 IR sensors Signup and view all the answers

During which phase were the results and discussions of the study presented?

Sixth phase Signup and view all the answers

What was the focus of the conceptualization phase in the research design?

Identifying the research problem Signup and view all the answers

Which of the following sensors was used in both circuit designs?

Infrared sensor Signup and view all the answers

What is the primary goal of the study regarding the SwiftCounter system?

To develop a Peso paper bill portable amount counter. Signup and view all the answers

How many infrared sensors are used in one of the setups for the SwiftCounter system?

4 infrared sensors. Signup and view all the answers

Which hypothesis is stated regarding the response time of the SwiftCounter system?

There is no significant difference in response time among trials. Signup and view all the answers

What research design is utilized in the study of the SwiftCounter?

Developmental and posttest experimental research design. Signup and view all the answers

Where will the study for the SwiftCounter system be conducted?

Koronadal National Comprehensive High School Science Laboratory. Signup and view all the answers

What is one of the specific aims of the study with regards to the response time?

To analyze the efficiency of response time across different trials. Signup and view all the answers

What is the total number of trials planned for the SwiftCounter's testing?

30 trials. Signup and view all the answers

What is analyzed during the second phase of the study?

Cost analysis of materials. Signup and view all the answers

What is the total amount displayed when the system does not detect any Peso bill?

The total amount and number of bills in each denomination Signup and view all the answers

What are the dimensions of the casing of the device?

12 inches long, 16 inches wide, and 2.5 inches tall Signup and view all the answers

Which component is responsible for distinguishing between different types of Peso bills?

Image sensor Signup and view all the answers

In setup 1, which pin is the first IR sensor connected to?

A3 pin Signup and view all the answers

What material is used to cover the components connected to the Arduino Nano?

Acrylic sheets Signup and view all the answers

How many IR sensors are included in setup 2 of the device?

4 Signup and view all the answers

What is the purpose of the first IR sensor in the device's setup?

To determine the presence of bills Signup and view all the answers

What function does the device perform after displaying the bill totals?

Repeats the process Signup and view all the answers

What is the purpose of applying Levene's Test in the analysis?

To assess the homogeneity of variances Signup and view all the answers

Which test is used if the data fails the normality test?

Mann-Whitney U Test Signup and view all the answers

In the context of comparing two setups, what does a non-normal distribution imply?

A non-parametric test should be applied Signup and view all the answers

Which statement is true regarding the T-test?

It requires equal variances across groups Signup and view all the answers

What characteristic is critical for the use of parametric tests like the T-test?

Data must follow a normal distribution Signup and view all the answers

Which test would most appropriately compare two independent samples if the data meets normality assumptions?

T-test Signup and view all the answers

What does failing the normality test indicate about the data's distribution?

The data may be skewed or have outliers Signup and view all the answers

Which of the following tests is classified as a non-parametric test?

Mann-Whitney U Test Signup and view all the answers

What is the role of the Normally Closed (NC) contact of the relay in this setup?

It is used to connect the positive terminal of the first DC motor. Signup and view all the answers

How is the VCC of the 5V Relay powered?

It connects to the OUT+ of the Buck Converter. Signup and view all the answers

What connection does the SDA of the LCD screen have in this setup?

Connected to the Analog pin A4. Signup and view all the answers

What happens if the IR sensor detects a peso bill?

The peso bill passes into the roller and image sensor. Signup and view all the answers

How is the battery connected in this circuit?

Positive to the VIN of the Arduino Nano and ground to its ground. Signup and view all the answers

What function does the image sensor serve in this design?

It identifies the denomination of peso bills. Signup and view all the answers

What is required before the Swift Counter operates?

The code must be uploaded to the Arduino Nano. Signup and view all the answers

Which option correctly describes the connection of the two DC motors?

Each motor connects independently to a different pair of relay contacts. Signup and view all the answers

What does a high mean in the context of the SwiftCounter's performance indicate?

It has detected currency accurately. Signup and view all the answers

In the context of the testing showed, which setup had a higher mean?

Setup 1 Signup and view all the answers

What statistical method is implied to compare the performance of Setup 1 and Setup 2?

t-test Signup and view all the answers

What does Levene's Test evaluate in the context of the SwiftCounter system?

The equality of variances in measurements. Signup and view all the answers

What does a significant value (Sig.) less than 0.05 typically indicate in hypothesis testing?

A significant difference between groups. Signup and view all the answers

What measurement indicates the degree to which the trial results vary from the mean in the data presented?

Standard Deviation Signup and view all the answers

Why is the identification of correct currency responses critical in the context of the SwiftCounter?

To assess the functionality of image and IR sensors. Signup and view all the answers

What is the potential outcome if equal variances are not assumed during the analysis?

Understated significance of results. Signup and view all the answers

Study Notes

SwiftCounter Project Summary

Project title: SwiftCounter: An Advanced Portable Device for Accurate Peso Paper Currency Counting
Research team: Cheska Nicole P. Gellangala, Lalaine Vienne D. Batol, Miguel Lawrence M. Osorio
Research advisor: Kathy Lyn G. Daga-as
Institution: Koronadal National Comprehensive High School
Primary objective: Develop a portable Peso paper bill counting device
Secondary objectives: Assess the circuit design and flowchart of the device, measure percent accuracy in two sensor setups (2 IR sensors, 4 IR sensors), determine response time efficiency, and evaluate any significant difference in response time.

Research Methodology

Research design: Developmental research design, experimental research design, and post-test design
Materials used: Arduino Nano, infrared sensors, batteries, wires, Huskylens AI Image Sensor, DC motors, 5V relays, LCD display, DC-DC buck converter
Setup 1: Image sensor with 2 infrared sensors; Setup 2: Image sensor with 4 infrared sensors
Number of trials: 15 trials per setup, 30 trials total
Data analysis: Used t-tests and other statistical methods to verify accuracy and efficiency based on response time measurements.

Results summary

100% accuracy for both sensor setups (2 IR sensors, 4 IR sensors) in identifying all Peso bill denominations
Setup 1 (4 IR sensors) exhibited higher average response time (639.55 ms) than Setup 2 (637.42 ms)
Statistically significant difference in response time between setups (p-value < 0.05), implying Setup 2 was more efficient in terms of response time.

Recommendations

Improve materials and equipment preparation before experimentation; use a suitable laptop for Arduino IDE application, use a data cable for uploading code, consider using a color sensor and a UV sensor
Use a HP deskjet ink advantage 2060 model printer roller for smoother bill feeding

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Description

This quiz explores key aspects of developmental research design, particularly in the context of technology projects like SwiftCounter. Questions cover phases of the study, material analysis, trials, and circuit design components. Test your knowledge on the methodologies and results discussed in research design.